Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '47e348767e356ce5ac2d78b23a221117e491040ce3e6b8998b6f36ff9696e709' 
  AND token = 'wUJ13YFO2elnjipkhnq3ZsQd1nQ6xY5Jw9taxlqWhSs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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