Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '7a45e9574dd26c4a17649429cd9a37bbf7f61610fdfb3504f1301205e7bcf5ad' 
  AND token = '7N53lCVgzN5zNwvqSDfN/QWOUUwiDt7Nf7s+Qp+Eqhg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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