Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b32fb31701e4cea86743909f2988217e72a4f82594b8b57ff1fb6c029bdef812' 
  AND token = 'NWyos335Wilbmm/+ZgXopsoQ8q1a4DENIG+Y2g3MlOI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00214

JSON explain

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