{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbdc834b8141e594dff775779bb30c7c81f9eed0d1b10e57f7c3e60cb844737f7",
    "signature": "0x6e6855b7e4805e25b19ae4ca01f8d982e2777d64ec4a5612c452c45cefd2f0e849883daf3fe55779d4aa9331c641f061ee791c64dd0dedba6272c7795564dfb51b",
    "signer": "0xE891dF9868dF2b03829B763B0cA1FE8Ac8f72045",
    "userId": "233913819"
  }
}