Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '007376d6720057c8661d5456d9664aa969eeda9903c786d6e3c9fd62795a797b' 
  AND token = 'Xt7EVsyYQiB9dsRnTm5OSrQNuGRQcVP4PbtzMZgF3L4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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