{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344987274",
    "entityType": "User",
    "nonce": "0x92694e84ba583cce3428ac0038c02ebbe3b3b6c21db9eaee94a3c962e730a5ff",
    "signature": "0x6a0bc191895b0b50b612ca2e5bdbe1277e7912cac926a1acb44117858ba19dc7227f1ae70d6b42241135dd11656d1609350f628f3de0a158de03829c754029331b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}