{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xa2059bf4dc39f61d626dafb827de6568981a6d751d9b773cfdfa27d75b76d6c1",
    "signature": "0x9f6c0cf8df5271e8b44362bc2f7f9f147fbdc4c18ebe636cf29025c84e0be5154db937d31b77deff65675fb5b4b44d6cabddcab6c54fc9b1b72b8705cf5314761b",
    "signer": "0x4D386A3060c2b887771faBC7ab3462336663fAF3",
    "userId": "271191164"
  }
}