{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389234186",
    "entityType": "User",
    "nonce": "0xdab724ab8fb81cb3dbae3ee3cfbb953f6455f1e8fe51a65cd1427645b96600bf",
    "signature": "0x13378b0b5a9b98729aa717f39b2ea22c5608ef6053ccbc213933db0e0f58f5662601de214b9d678960b66f6332da2b5d5626cdb05485903de30252612c136df61b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}