Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'baf6a19d228098bd3d20487ea8cabb3d38b820f9003a183f4b9ede27ae43fdb2' 
  AND token = 'y1lmzGJyMHqM70QM126814sC+1tXkaTocE0ZBJdAc+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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