Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '87650f5e00bf80e92302acc7bab0fb2d38ef1bd4bdb08005230bfbb9cd911cc3' 
  AND token = 'nzA5/HsiB7Ijd/t3NUug4rq1g8abFUQXktLYejkovSU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00124

JSON explain

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