{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "810273153",
    "entityType": "User",
    "nonce": "0xbe52196943d9797e389b24d8c15bdbfa4cb01792e41f3d4cad333a71cb52c93f",
    "signature": "0xd22195afd0c552bc4c565d36f4cce3e8be2dc86989871ba197f66df55451ea260b6b20949a1c9eefb1dc562e331e8c0e6498e6d7092caca75a3fbcfefe05f1711c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}