{
  "manageEntity": {
    "action": "Update",
    "entityId": "613144499",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfd2c0ba47eae34c98c33eb676701253c08872987b6db384263182483bc905f3e",
    "signature": "0x9fc11ab777b3b7a9c6f5abfb0addb89583429ceae70287fbc41aa707ad0ece077de601539073fb4755ef3d148fc2ba60ca3b0f9cb7e582dc4887bba36ce996101c",
    "signer": "0xdB18Dd74b37b66C00bF43E57F7d4139e3Bbea523",
    "userId": "613144499"
  }
}