{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171877",
    "entityType": "User",
    "nonce": "0x5a40bd4d1340d157a382a48352d2ff0901d23bd9f87e1c9bee8a655fe7b70722",
    "signature": "0xff6d8eae8085d5a6ec5fa3882b4799d7137d72c292495f8174585372ce93f1f51be8793d7456cd8a1c84158723ad3402455a0706aa32268a14c9dc3e8a5737fe1b",
    "signer": "0x2CD314789C9583D12b6F54862F9E2cf505880Ad9",
    "userId": "354640"
  }
}