{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980027720",
    "entityType": "User",
    "nonce": "0x9bbd8a3a4e0f81a4ecb9cb4e9084fc7c03321ac5b0f8594f7b58dd1b547f8a43",
    "signature": "0x313cf2ef8b4f41e6c329aa6655e037b1594936ef06d7a65bb2edab523bf69c222928d7f81efd28522a17c39d6b198f0615eddfd9eaa08069d0284de33c8816771b",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}