Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25022b25818c67e45028ce96f7800fad9ab776679379ee1b2baf6969366d0e56' 
  AND token = 'Mj/EcGs6K6hv0kHEmSu/sRtd4GzVcEagQEyC2k30njQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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