Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95927d09aa8d719169fe2e64b6e928065acd3b484af8ae9aaf0d16bd0de310f9' 
  AND token = 'bk1rC66TNfdfvFpl2Z/pzPBpPp3A43qYYx5wog9KeIA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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