Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '057da464c9b7332eb83bd36fbad74f1743df0caa682f9f0be111758f8cda7fda' 
  AND token = 'M+OsVAaPqq0vMJDyzkoVYYYLPUs+OsZy/CyZ4bMW9uA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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