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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1cc892e2308b9eb171c29f067b19aec25073b17b3866fc0ae9ae3c1bfe30a59b' 
  AND token = 'wTxAsoBQrma2z6HicVYDO8qdCqJjIDHfuMikkBaziCM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}