Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5e9590b298b4a3d48f925e91f655aa3382d31168a8e9bce6438eea44fe18b535' 
  AND token = 'IKbUyhrAhhLf7uhkhCe1lG1PubPlVXu4hXfsf7YG6lo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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