{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51359",
    "entityType": "User",
    "nonce": "0x85f8f68bc997169881c8e7b4395c7ade81b38e8e6122ed5175351dfa814fb4f2",
    "signature": "0x0a3dc37239c177b6afc131e72137b3c509beb5da6ec5e419adee0b96073fb4b250ce4e8a8b8113f22a4e27e331fe2a9308cd3b2f4391369ac17540fcef30404e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}