Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4e1f7ef5a59adab31157f9cd14e660310cdc659612b4906ce84770d0731c395a' 
  AND token = 'sUuOoNcH0G/9hnqVxp4U+B5e6ujVCT8n9lwwYn2b3go=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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