{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb07172e7a317a5680e8b57e33da87d3a24878ab5581cb6c83414cc0fd3f492bc",
    "signature": "0xe3bfdd22188c5d9f9e842c532aa9298ed723689f2956cab2f8a44f40712c37aa00802e6cf2d8f14a4f5133c33b20fc38b780dabdc5dcb82921c16a576442dfb41c",
    "signer": "0xD8493aFCE59d2d5d6514b42dFb649B21A6Ab86ee",
    "userId": "593365949"
  }
}