Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd0506fd5a8a71adc5e6ed99cec28826ebea0e400cad0a0d0bc00011210a2c097' 
  AND token = '67n7A8cAmJv40FYSD22D0noNv4/lNzIZxOc4i5XtiDM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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