Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '86e486e2e0e9cee7b7b9dff3503855f1502ebe1e761d05894769246cc7c37747' 
  AND token = 'b0Mix4iBBJaMR8Pb0NhyCh4pJlO8fUPobQFt9kVlMOM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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