{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x5d748fdad1de60474eb87ea5ed266c7fb2ff986b2c6372b0c66bbceae53af42c",
    "signature": "0x7a9afbcbe55cd1efd2ad02c85fbe43e82ebcff94574255008a9dd15ccde19baf242e868a30cbf2e391307a7ed9c24c0b8a1622c57d3a5b1048907943ac53a0521b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}