{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315091",
    "entityType": "User",
    "nonce": "0xcae59e7a377275ef9908b194f2de48291634c3bbb46c8fc631536795e5b9d077",
    "signature": "0xaab2531797f3be1ee7b37173d32ffbd9563c8f9ac2f93ea96b143cc610cef549720d3c91e9a2404d677077b52a8df0147ed2b28c49163f321934033aa3240c501c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}