Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86a3d603eaa6ecefea035d10df7d48f6c2092f3948f735f358858875cc432527' 
  AND token = 'VXCe3cbjODMwpFAv86s8tY0b3j0RV9WjK9Nob1d6crc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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