{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1490648",
    "entityType": "User",
    "nonce": "0xa849a1fe81f564acd3df182a9d081d5e778c16cf851aef066d6b1410445bf27b",
    "signature": "0xa1bee00710c73d76a4469a9958c2bd2a37ef5def98720936f7be82d338e0b4b82a4e6c5f6f040f6d13990933fa71c3baec5ef214c59075f4545c1a44db19b7e21c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}