{
  "manageEntity": {
    "action": "Update",
    "entityId": "55875",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqcjxesyqz3efprogr6tqe3oa6hbyhzpei4mjdsh3b43rrddg4lmq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":647691132},{\"type\":\"playlist\",\"playlist_id\":140294347}]}}}",
    "nonce": "0xee7779b7c44763a47004831fc847a37e25445c4b512657e4b3963f6468050c35",
    "signature": "0xa48c357a453765fe324bff3c565b78ccc619f3de6f1001f1e35646e50da8013870af341fdebd5f337b8a3dfef0faa3308add274f7d056cbd436579292c4f7d6b1c",
    "signer": "0x4a26E1fdd6FdeE62e6A343d231CF3700Bf1e26bb",
    "userId": "55875"
  }
}