{
  "manageEntity": {
    "action": "Update",
    "entityId": "539276466",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasevnmrffiuspxcajcyudskowdqs2i2u5ttazwnmo5c7um43uc2pa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1867225063},{\"type\":\"playlist\",\"playlist_id\":1016439760}]}}}",
    "nonce": "0x95ae5c59881b234be6a617bc828fe066a315331e4fea3445c51ad261e0dc7129",
    "signature": "0x5132e5050a4834511ffcd5459174d20fdb67648b4cdf8e803a3335b45f7745951d0c6884c31c5a426400dffde35986fb0169b15d0bbbd0fbc145e6f5cbf509e81b",
    "signer": "0x7e920377E93611BcF59EAfe8db8F78027330a982",
    "userId": "539276466"
  }
}