{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390804",
    "entityType": "User",
    "nonce": "0x24853150138117b43c188a77dedfd05822cc6a614a687d6743733bd176760f7d",
    "signature": "0x194f72759e15e62ebef15d971fed8d8a55d62e929dd2ba7367265d4ccc2d04bf2ace93091262c7c2615f62ba2ca28a72070438e126251024a524b6cebdc016ae1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}