{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1571",
    "entityType": "User",
    "nonce": "0xf97a9558a434057eb2175de41fa1b454f179c975afc8473a2b663844cc01c070",
    "signature": "0x46d30489b014a26fd05a368e19426447d5abeabcfcd1ff17516eb1ffea5058911fe419d01a9c31ef9983f611f876fd809d97cf9ec604c915696d3f4b0f36a5261c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}