{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7a7fabcf6876cfdfa41c466d2c86f5002a837f602ba21e2db1031d87b3c3f4c1",
    "signature": "0xfd9b58a3c7e19964248f376021a1a9e66d6bf848cee6ac64466f73e79baae576526eb9fd214d1b2708ba3ab641d82b7d73024310f870795d9468cea63b5fbb711b",
    "signer": "0x175A3bebFa14E64C549CAc2962191B2B8C788421",
    "userId": "6270901"
  }
}