{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3711",
    "entityType": "User",
    "nonce": "0x0c2281d661565785e1426c610eeb3612bef75a1437f9def4f451c2ef3f93a6bc",
    "signature": "0xc8d9c9cc5690a23fba24d69de2617972161f769637bf34b1c7abc5b9d2383b796556702005009e87b5dd9dc8d763ba624744aed31ad83e1d4245a68572a638371b",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}