{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x444e59a242870e45dc6aeeb8ad151f7edd2107e1851aa6cc960f65a9132b6353",
    "signature": "0xf42561435aff2540c8b157023b5d1968a094a635d012b28fdb9e36cbb98870f71251fbf71958b18a265a33671413a16acd7ccb643c79d0f90b5817bf65e10a7e1c",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}