Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77357b5b2ac707400613b6414824efc5437130aa8a91f27dfd11a9dc9601c9e4' 
  AND token = 'NOLKQ1YGWmHWW6BfGy2c1RyP472M/um32HQS7ktm0QM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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