Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '18bedce0933f952daf18f66cee9d28c92c201e08c0ea649e0aca34300e74ff53' 
  AND token = 'fVr9PfvpZzjbIQb1DCr4Up91GIKrsouXm7G5uUouZdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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