{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54258",
    "entityType": "User",
    "nonce": "0x84234fdbca47aca1462140c7a8905befef7ada116fd7fc15deaee768b55ff524",
    "signature": "0x423627b441fd94e3a46cf25da79675de8071861b1571daa3385701f819e5bee33a3083eb6236164744f95bc1c1cfc9aee3df0dce1435d5d03956be16461f51221c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}