Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '622c92ca66be3f3cd0919f766acc09d68a97e8861cf42883c57db9937b6cf7b8' 
  AND token = 'ZsrCcJUaXSoH9okyFXNsEeprO50HzbvO0Ydwc/q1rKE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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