{
  "manageEntity": {
    "action": "Update",
    "entityId": "7834335",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6205d91e3d213f7412783aa3cd97e671e2623ad22aa45e1dfaa517db476ddbe1",
    "signature": "0xcfad81954f65ecf8031869a31f3732c19c315729fad868d9d667ba33349459cc06bb2fa6c6882939607c98544c7f70cfd5cb615e9a253bd873fac28783f1c7381b",
    "signer": "0xD7BAd350127c691aA3856EE6eacFeBE76258dF4F",
    "userId": "7834335"
  }
}