{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "269169084",
    "entityType": "User",
    "nonce": "0x8ab3c226573b2e57457529797381722380a8ee884a4ac5ac521acd06e4285575",
    "signature": "0x5807749d936edf6164fd3eece907610e8501a0707495adb07bb4e04e7ca18d0132cbc72e3f6340615351d3c798e2ad4923c16dcac6cd881f9727a59714a64b601c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}