{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9812871127550bb6ab0e6d14fe417d3e36306b4d423478b13f57b8ce24f12a4e",
    "signature": "0x5778f41058fad6cd96ff7154d7a4316ffae343e89738bb45b5a96e6b7385edcf0a7bed09c7e16b4c6c798fae203762c96b77b77aa683a6e7fc00e040a9567ff01b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}