Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6bb905c74ffa32b25c53d819506655847a54fe5dc2a77e285f625c0f4afaffb5' 
  AND token = 'T11ueALfWBcLeIKEU0hITEAFMrWMGx6lZth6FJ7UX8w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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