{
  "manageEntity": {
    "action": "Update",
    "entityId": "736815309",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x85e49dfce9f350b3b890ea9ac28bee58dc7f0cc8fc3b4b70cc5ccc8f6140e3d9",
    "signature": "0x259ff8a62174e82c48f99c38bd3b88590e3d3c59f72fa997bbfd58d2893a5ae800dcd0e293bdae56800fb8cfd67912abcdc50e1740f0ef92d0dc6d3f9835aca01b",
    "signer": "0x11757E27DAeB8C8A83e4810189D1A5DcD26895f1",
    "userId": "736815309"
  }
}