{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x4549c4befe5b9567d4445b53137da03a490718c44245bff9700bb2d1bdbeacf8",
    "signature": "0xc89892c864f786a360b4d542e4003ac63a087d3f9f4e5ba1dbd991f3d86412f269baf9feb270c01e42ef4f631405717c8c9640b65cb648fe6650ec793e9d455e1b",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}