{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x6c771995e38cb3b5e250dc3deeab4ca9953359519162b8ff0493a7b746e66afe",
    "signature": "0x678f1e280ce35ab9dda57c684b89fe39febcc81cc406ee80382f622be92396dc65a9ee6414c1d80e8373ea7767c5aeb30088c3263ccf3c1ff58628347961d2ae1b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}