{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683585585",
    "entityType": "User",
    "nonce": "0xb4bf7e874d523b7991904cb5897301029a149e4e0e133f5f7911b1dd46de6079",
    "signature": "0x6df7175e96f6ab79179dd6e03a1a30ef5e83ca2e24dcc85f2096855fbf65223e7da735754a1138207d2495351b7885d3236926b6060d4f94a5c3f60ea2ec456b1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}