Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aa61ab5ad6676b7d58ead043f01c4f4154d4809768b93d258faf2e42dba936fe' 
  AND token = '2IHxizXO0gpT/hIdeI//2/xKbbt044QanKjIPsPvT4E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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