{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60903",
    "entityType": "User",
    "nonce": "0x24549a1243b23f078a861459ccae6be1c0040f679a701fc0c1f2eeb5029a9ae1",
    "signature": "0xe50754504b51581df72795483663b420968ab6813529511b3a5eadb5188a3250775e3219babecfb806dea0d40411b0df8062a36d405a23f49f7be2ffedacf0fe1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}