{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193342",
    "entityType": "User",
    "nonce": "0xdfdd5bd0fdc94103827dd4c05066e6fbe87ea711fd52a248dccf4eb720db8f27",
    "signature": "0xc99293f70fe61cc696c6fe42b1a04251ab3ca0ddb0114398d8345f3c4101cc7e07e3f0104de6a4d736154b284060ea630536ce039d9b06731b8d5c83b35a056c1c",
    "signer": "0xBe0B2B2beC4B0A46ff11169512DF7f66E775c0B3",
    "userId": "196632465"
  }
}