{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814721941",
    "entityType": "User",
    "nonce": "0x584ca194e280cb580980400c69d701ebee7e810dea5cfb2b054b8a63bc2ed574",
    "signature": "0xef90165f2d891842858c4b9974ec01db878d13fa81a0f4081d0e78fb26fe12e20770f396b68402dcc9d5bbb550e5c5be813ea866adcf197ee4cd862d766da0011c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}