{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3bd1a064f630d1aceaa15967584ffa78eb9e7f01c44ee52afa7f11dac6030a3",
    "signature": "0x2a93415514f4d6b429a695021f23fa216b4fc3dc26c3f2d7bd684989b601c4c16e3876306b3236f283600c7e7b93758e451e98d89d37946e7e8f3b2acac53a011b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}