{
  "manageEntity": {
    "action": "Update",
    "entityId": "171594868",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieral3clni54sau7x4cq4tpu7t3kvvwz4kewxj4ydawgpdhtnzteglwa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":177905104},{\"type\":\"playlist\",\"playlist_id\":1694618767},{\"type\":\"playlist\",\"playlist_id\":971818751},{\"type\":\"playlist\",\"playlist_id\":1516513995},{\"type\":\"playlist\",\"playlist_id\":2059360285}]}}}",
    "nonce": "0x997349cea80c774a10c736504355005e3017c47751d49c897a39c8737012b6e4",
    "signature": "0x48c8ef215cec45f13c45033551e96d12417a7c5d193831edd6edfb4ff5f1bf833b22c3f169c0f3bd5964566416f9206709d9b9190a4529e6645feb24622a91181b",
    "signer": "0x9C1F89CDE33F8110394DfA4a5Af51201f8Ee41fB",
    "userId": "171594868"
  }
}