Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0ff8094d3a0aea714dbb1318871654e158c961118e07a08f648a7e0b8e0eaae6' 
  AND token = 'POcIHGR71/U9hR4N0JyHOwfCCfJXFA+ULEUcLVNCWss=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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