{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa25a21c2a456df8a17fdf31f17902373688d98359b2f29e15d64be552c2b9ab0",
    "signature": "0x99ccb8bf6237e7bfeef12523a10b2251279587fae514cc5b1f31b34fe0428f46147dce73d69d5db0b9945931c80b27ed732bc9a272ca6a5df62b6bb92085b3a81b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}