INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'e28a0e4b84a1140a0ba5b15745c4d9da41b28c0586dbb37280378713c8e3b511', 
    't6bKGhVcd8VUgFSgpKYtQ65stK4K8giXt2hHjB2oAOg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)