SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '096b404c7d7806c4d578b8109cb395ef001eb5c5ea85a98897df9eb2458465e8' 
  AND token = 'GZP7LUY4+NojpIjGWg/XACEWFHcKXijxzhT0fvwL2us=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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