{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948228891",
    "entityType": "User",
    "nonce": "0x503d24741935734b44273ddfd7c687ec4f2d46494081e76b78d9d719e7f29fdd",
    "signature": "0xc3408b965759eb0cae2de27d3435cda8676988f04b82e1ec91d478d469698e745b5bba0564bfd3ac02064fd3f0f6d5f2f3f075e1593fa9b03cd04eda8e9cca141c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}