Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0c446c2e14eb9063161c473e030f5ce09afcc7164d86d1b2742c1014c8ea0a6b' 
  AND token = 'R3WBU0ekHcYikV+FFIeUT6ohjzArYgZBlBYW6sOGhhc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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