{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965708335",
    "entityType": "User",
    "nonce": "0x2607f0db9f0841ed9187c78fd94a222a4d6e199ca3ba412af2e60b3298677363",
    "signature": "0xb154c815a38471990dd8572f716ed3de6d3f42c573a6c4b3bf58ef3034c81cae721b2b6143f7ed70946459da45325c9841b90af18bb766466e8961000ac04d691c",
    "signer": "0x20690bD900B04126EBFAF3620E46F1645188CD62",
    "userId": "16326"
  }
}