Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b72319018366b16da277d52ed3e52bd832233c9be905ac3566fd83e44197fbe' 
  AND token = '6l2QNE+hrPTS3xTtgf/Caa1xhWazPcIRl/ue9pm3G5o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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