{
  "manageEntity": {
    "action": "Update",
    "entityId": "624315005",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierae7rpn5abj7mbayr6mkp6mwdiilvdp6wxpzulmexs7zof5ywizzpa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1449053280}]}}}",
    "nonce": "0x93434e660418ed5336630139c0e9e056d544912456c214c2f5b64f954e7debe6",
    "signature": "0xe9c6d6ac8965d447455f7643ee28775aef3c464316f36e95e53bcfed166dc2f245abc47a1cdaa57912148a37f99489820405eff19c40aa1926f9ef80c1463c201c",
    "signer": "0xe7DDA4e7fFdbafC17817455fcd57637e5B7f3b5C",
    "userId": "624315005"
  }
}