{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x0a947f822bd1a67cd2d5d80eb21be439767b89f636ecfc33f5f26e5aaa2fec8b",
    "signature": "0x385f6d93a1b2c90adc174d0abcbaa3f43eecbfb17fa9218b5f28716c03ef387610b9be48be4c33fb67ce450de0a175b2616fa5e20330ad05fdc9ca17681f7c411c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}