{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2c802a3f987461c2ab6accf999bca035e478ff51bd80308d75ee906de496afb",
    "signature": "0x0eb064b75cbcf152342a6d157fdc3094cbdccb8807eb6d21ad929059b33b15450404400e8dd6908b59e81966bb8942f4fbc1600330b0ea9dc8f614903bb9b3b21b",
    "signer": "0xb618b4D073be9B97b1398D5e0bF64A5c6730E1a5",
    "userId": "813542543"
  }
}