Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '23c550f4f9b66ea7a39ef28542f88c41031633169d8033f6d3f49ea60e39b152' 
  AND token = 'vrD4fOSCL9Up9N4RepxUkrGqprlEqUsQTL8N95ZLwkc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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