{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191130508",
    "entityType": "User",
    "nonce": "0xfc45454ae7b5b00d1c34eb5a851f8728fe2efe8b85b5112617dc774f1c5b1977",
    "signature": "0xe474c61ffab7d7c379387c12100902f51e7d7ba1aa8f52bd8ea00db0ef472dac665f5add14f1e836662009f754bdd9c16e76bd18c2c2601821a61d1d81c950651c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}