{
  "manageEntity": {
    "action": "Update",
    "entityId": "964025330",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7ca9ccd32667f57b4212e2f3a86c5189226ec35a7b0b542efa1dee7058a86f5a",
    "signature": "0x8400d06b5671ba003babe0a74824eb8d05f3b6c41e5a3dd0a451a9d8dfd7e30d4b990efbc7661a1cd670f3ab73da1007be875cf44fab209a6cc9e4f18e562ab01c",
    "signer": "0x18e80443A33c763307bac21D4Ec54B381DFC58cA",
    "userId": "964025330"
  }
}