{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0xf63d90862c4558f37289e627694dc62794b14c83e1eb05a66bcd11cf6a80f70b",
    "signature": "0x3bc7c8325c5cf2e5ca109db99c5eef9b790fd61b72ceda8a292af446adc0a07b5b058255d450e9b6ead9ed53c317c0676a9e6d5037417c6adf0c865ff86126dc1c",
    "signer": "0xcc9cCc523005B394381478381D34DddB8558A28f",
    "userId": "957873025"
  }
}