{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x074b4baebb6b1d1ca3f879b361ec23b5b93ead65b37f03d2b505713cca3e073a",
    "signature": "0x82147f81b90dc1ef97caf7f3715378c19c05aa80bb9af1ec422f07c14e5233c21592c879d04c53cb86b5485cf3984bf5452c5ca571862ba1316b56478024f5421b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}