Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b59193e276e2ed65227f286b16f69854a8bd06fffd5e652ca2856576cb72cc6' 
  AND token = 'nESGakivF0j7FcDWLFAGnRY+AXDeUwpXjroJS0hiN4Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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