{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258307",
    "entityType": "User",
    "nonce": "0xbb5106e088479c566cbc27b52a2361d25670769bd829606c7c7f6b3edc478f92",
    "signature": "0x82b5fc1c2de462fcf3d5e6dbc11eebca7e86e87448931c41088d4bedac33ecfe79db3d2a8b244543ce88cafacdee592b392b8b925f2e5eed1c2c3ff02bb1d5a01c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}