Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '983ce850cbafea31572739d4bb9e9a4c43d3631edd55d2ae3edfe89cb89c781c' 
  AND token = '/hD9SLWhuFJ684AyWLs+eQQ+yn6mjYPOw6xisHAT7Ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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