{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2040",
    "entityType": "User",
    "nonce": "0x2912aa1c3addf907dae9b4345573d3fe6d5f6fb2b2813e67ea12cdbc8c4dc15e",
    "signature": "0x2721335b3251d5d0de5cdd55f8841081797943917613531fd7c97b32e283a800210881f6b5235860f67c1e2a9ffa7dbd99d0fe39df91f5d4296d97224b70051b1c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}