Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9af4fd7c4d52ceae2cd3784bf87eea2ffed2b4767024afb310fa34100c7c933e' 
  AND token = 'PMR8GAW21t8rbeuYfi/tC4vFdb8WjlucENL7/57I9rQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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