{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "407339",
    "entityType": "User",
    "nonce": "0x4d2fee2e4658949c523e54d1041be11fb3a8da854895c593de61831c898cbdb5",
    "signature": "0xcb4545ff90640d3878b963196f7b62258da8c0c91af4a38fda8fadade9a9dd1058b66931846842296067a18b10f1b8bb42259d738cb5bcf14f9fe0a22552c5b41b",
    "signer": "0x0dc841034B1bF144980A271B3d3ddcC08bE3e612",
    "userId": "796427482"
  }
}