{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1866428",
    "entityType": "User",
    "nonce": "0x9350b7c8e506e48327ae757ce904adcade189df32dc56d8ac3b2e0d8369a1210",
    "signature": "0x84cd0fded8df9cc5b3b817f274a6a2eeffaf5245a00bbd3c0f916d01c6809c22117f474aaec6b46ca22b7b666b4b5ecb7d21d0fa159c3c486a4bab9dadf00d5a1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}