{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0x15ec440ec7d0f59dc378a03d481319390316e760e677a49fefe5d90305715d64",
    "signature": "0x7cad999845f36e12f084955678291409fa6f23beade2b8bf4059429349dad3975dc3503d124b4903ab44a6c11e254e49429b2acd4d04a8849a1caba786b333031c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}