{
  "manageEntity": {
    "action": "Update",
    "entityId": "960377729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6d42f56103414ee514ddb0f1f51f6b9011c00b9c23fa0346d727a86fcf846d84",
    "signature": "0x60a19c9151db933e3ffd3758aa1fad6cbc2d2b3f944168630d1e3599d05107725bb7dbb856c75f58a19fd1843c1f9f18f32bf5a4e25fa6d11e0cbc4d0a4f7cfc1b",
    "signer": "0x7A1f214312F4D997f528a3d3C675C11eAbbCB0BE",
    "userId": "960377729"
  }
}