{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5249a45ef2d6f96eb241e05635a299d24744a1249f1a4a94e214dbf3ad82f29",
    "signature": "0xf70e5a46643a4481eda0fcc6e5cd44b0405e65ea1ef99b8fd9115f17b3d3087e2b6b209fe4554ca6ca111b59ebb60aa12b55236c1c1424f6df75922bc0f2604a1b",
    "signer": "0x102fa8671c4DEa87cf6826985Ec0B0822da0e027",
    "userId": "239334937"
  }
}