{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x858f809869bd4db904654d2f4aa91fbf0dccc987c4a00114b8cedeeddaa1a33c",
    "signature": "0x018942df84f3c460de7f0b3a31cb532547f33a8476d87cd44c4986ea42b495991c2e3ac678af5a4717eff16ebc446e4b084d012573a31c12b4e9e72b28cc74ee1c",
    "signer": "0xe3eC74910EEa8577CA6cFb4cA388276FAfC09834",
    "userId": "167845231"
  }
}