Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c6d794ad8862ab0a24480ac8c253901392e6725a96044b11532ac6dd33e4d558' 
  AND token = 'VY/KrX9JvmHSJII+0E82Hln2+as2CjQWZHbN/diRyLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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