{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0xa96ef49a829219553e40872a1e7cd9bbec54719b24e24f75eaeacf5e7434e303",
    "signature": "0x82496071195e9ba3c4b9636380719b02285f67c8a4e727112473e682b5cccdb35e022e8dfd2ad3ebe917b6a56d7a0c3dbbe5b4fa269c5780cb605596729cbd071c",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}