{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354384",
    "entityType": "User",
    "nonce": "0x6b4c4adb8eb27b2c9fdbcf0804fb0b38cfbcbe4759c8d0f741f403d36cdde80b",
    "signature": "0x5b7d26506198560c1249fa689d2b970d6ad36884b9b89546dd4b904e462ffbe72df356abc607cc2a99063d59c1f46cd76802ecb6b025aee7b7afc011999b834c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}