{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10979468",
    "entityType": "User",
    "nonce": "0xa2a54ec15e4bd2a6fd62c40f77c027b91a40e826f19d05372628c3abb0b9000f",
    "signature": "0x5e94b6929d3a82b8ddc8388924132e32ff94ba3607199ad03d9844b3e8fa88fa415612647bfdb7fe0a67d4a28b74982207a598bb16901d4c4eb9c21ff9d0f0771c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}