{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x572e2353a1c0ce1136bd55d24e146dd399b3fc65affdf548b13e86a022092aa1",
    "signature": "0x1b1508b55cfac6096055620c430d2f0e57fca59da26c0b9a3b24895244452ad94f8cfb265fd744bf34983d225a44a8d81c339949247315744b99af03676f93aa1c",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}