{
  "manageEntity": {
    "action": "Update",
    "entityId": "631010737",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x941ce67e46622e7e0f9e9d29cc401eba7279f3a6c486691cfb5dc5ac91a5eb9f",
    "signature": "0xc594b31c5f71e08d5ce69fc0d9f80cd18e4eab6a72fb0d046152a57aeb39fde064a01807f4f0a13b41eb6637e3d63b0bec9376642fac78b44835d59ee86884d01c",
    "signer": "0x6e291757f96dFB30e76EaAd02EBcA330747DC4F0",
    "userId": "631010737"
  }
}