Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'abd11d679ba42c028b95aa5ad127b3dfb6f156de65cc89e872e145da96ba405a' 
  AND token = 'pR0ZFJD7L1+edwaz8/EQ2PhV5uYitEK6MELVLOE7MH0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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