{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350320",
    "entityType": "User",
    "nonce": "0x35ce0048c9b7d4d60a63e63585512db1b89b8a2ec1ec353801b367cd73b245ba",
    "signature": "0x0044c3e37cea72cd0603c8ad7caef061d60f75e58d9751b3daf299d1ce8e0edf3c3f514d04f59be0033d2d6a45f8d3048865a12b2a7d445e85f0ae42c31353e31b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}