{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390631",
    "entityType": "User",
    "nonce": "0x74e17ec7c32114790497e2778e1bb1e72f6395df566fdce2a7e33e8be235e57e",
    "signature": "0x65f677b7f6eb30cfc1ba747fe8c2fb63dd6722a727372408f1b91880d05116e120ee5861f2ee363ca1a20b84fbf25e7bc769c530e260a2c12de899160dd709c21b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}