{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6eee69a7d9fa18b9fb1f9bf8e30b087069ff4bef4ff1656ba9505f34411b0a21",
    "signature": "0xe1d278013a608477f326c85c24cd8f4766d337fe4c2c8b2423b8ac3e777441c7186882aae8d4b3a2cbbdf13a0853ec8b43bdc071d99c23f910baa0ecb352a28e1c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}