{
  "manageEntity": {
    "action": "Update",
    "entityId": "956687976",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x924c16d091c2b44f07cfe95fc7a902d042452a9e27afc1c6562020f06e9af58d",
    "signature": "0xd4f5c4b7d87dbd2cda97c3403f3d4997be6ef5d120c3f997ada7a2dec16d888957b1d544b6591c55d94bf187358cc12fde50e89aec7880208ccc24970481b4b11c",
    "signer": "0xC888d1fD9065F0AdF661c54a6bA27c25E56ba3fC",
    "userId": "956687976"
  }
}