{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397153",
    "entityType": "User",
    "nonce": "0x154f8c849471546dfc4af0f154601bf5aa3dbba5eeabc38b54203bd49cbb5eca",
    "signature": "0xc8268d42a30e8fe9e96dcc8a7308d6ff923b0ef6e4c6855f1376b38ca66dd37a3884aaa5bc7f62bbead20dbe26c66579692de089f2ffe0882ae16f2907e8a57f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}