{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0x8d70860acc77f8c530fb2619157440b2b586f5348d588c6a9e34ea7091c1be2e",
    "signature": "0x0bc0c0ad68aad7eb2869dab7be67d95d83e328dd8be080b0be38c88228ecd2dd303d838405b12d55605557be214f316e5f3d9f42d4ea607b5ea31b80936c808c1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}