{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0xbcf619c54415bcc262fad0706f5e9207653332e9cce50d584c560399475b6311",
    "signature": "0xdd9ce7c599adcb0062a83d586965ce66a3b457dfa861a0283d1114ff41c6fd0b21794c6f109a72d3907bef42a7769deba162d90e46a6b8f3f2b5b1cc48770f191b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}