Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e7e032f6469bd40320035183b7b84eb3923303b9fb4c6ac82c4af05888e590ff' 
  AND token = 'PsjWWxlV9C5p6kE0RYOEStr8PG1Cbax/ZFL95joL1G0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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