{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231257",
    "entityType": "User",
    "nonce": "0x9b039eb4a9fbeffc12e8c96792ee0b5856eff0b8e04a3a189b8ac470cb72df78",
    "signature": "0x998c2f12b2fb080ad7582248a5daef70e66c4383fdc5b331cef66af3e427b881215d7b051feee75e51a2adbfcd670037ac83837663c5e925717dba5ef761bfe31c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}