Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f1b0278ea90a76627e4c167a6ae14ec97e6305a663c5d272cb1937901b41259e' 
  AND token = 'hwLvq+8NCIgcqWVZaer9P3P33P0J2Igm4zoNcWC+Wxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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