{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "724956159",
    "entityType": "User",
    "nonce": "0xd55bfbf42f95df916e2abc7bc3cffc1ab482e9326e7b58bcf7dc3637b555eed3",
    "signature": "0x9cd61741fa731c555e489f542ddef2a2b6947999dd85e673389997bb876c33215d1d0ded988ad01afbb9929e1fed5c235f9bd5004d48dd0b129fe8d0717dc6161b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}