{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7247a6621b4694e6ec7640f35b00b51b51faaae8a0eb5af29933a62f0c5bab05",
    "signature": "0xb90d2c59498ed8d9dece1214ee29f18ed5494150e81f29c5ed9f0f0a78753e4431cb9581da4e278ec066ff2b6e53a09b29734df2ac50cd7205c60a69dec44f7b1c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}