{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbdf27da155d09acf5b14de4873f4e985c9a89953d38d206772213defc625c022",
    "signature": "0x4f21946142ef31dcfd0f8fc6952ec2221d905b86ae0bfd075266636f9cddd90e1cd535d5b621e1e233b6c5c12cc22e43aea6c0d0f9856004bb8a57fc8ca6b9831c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}