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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dad8fe97de22797417b809a47d279df43be95dcdee1d551ca59ad7af872f3238' 
  AND token = 'kCTJ4F+3UHFdr/BH8K2e/FLBlRom0Ba849/3KupnUlg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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