{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfc03356f5a06bedf5413d39dd889d7901be96fa5024a1c3b8398cdb1cd15d9f2",
    "signature": "0x0dac862f11bb8e07fa71e415acf3d2b6c3816d95215eb714486571f80bc1e9156407a102e2cacf42dff6e4034e82323cbce09b31c0f25eab36fee1b6dea1dfb91c",
    "signer": "0xb5902ac1A81A6B795210DdEB50e8F1FdaC9aed97",
    "userId": "842982090"
  }
}