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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01ef0770aa51fbe442c206ef069e3697385482e3ae81010e730566c7d2f66bcc' 
  AND token = 'p07PpiRmgP4hUJ/t/5Mz+GkMKtUeZTKIwlf/nwsgM7Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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