Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b45076e5562c2d22966df6b42ad82172c1e405982892cbe4c00eb6e1dcf05523' 
  AND token = 'EJKGsFjhy9Mv6ORABW6c3eMS4NlL6rkLo40lgBzfcpg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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