{
  "manageEntity": {
    "action": "Update",
    "entityId": "958150326",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8767f3269cb0dcdb9f5b94011f34b0d0ae8e2d81f212edd1514b68154712203e",
    "signature": "0x128255f51aa0c483da5618a6cfc1eb6371e0b959c2ea512dd2ddf940f68a07fd14f5a2fc327fa13b35a36f40e64eb1f5b53acb9e9ac4d9ed25e5d7ec7a907c801c",
    "signer": "0xE7a28466b2b9Fc56dd53BF75cEC4544E0b73587a",
    "userId": "958150326"
  }
}