{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x259795506443eab7bfce5f3a9ce081a2835a735744369fc8263dabb4f449d519",
    "signature": "0xd36c2c3c79237d2a540f0be026a49ec4d8b8d2fe390d0efffdeb3a841f1e19215636f58bc3e053bb1832279c41e68d6c48d1e53963b8d91a340b85981974e1691b",
    "signer": "0xfc524E77aD1Df77A85031e9fEAa2Fe8dC914f41D",
    "userId": "201329978"
  }
}