Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9d9b6e173af682ea226d3badbaedf7770617ef2db04a700a2a30256f0c949aaa' 
  AND token = 'FDKRtFM3kOIDw5u5jwp+Tvd+NNJ+o1+2rxbaLShNjpw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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