{
  "manageEntity": {
    "action": "Update",
    "entityId": "893473168",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x75f626d2d93281ebc15fdf070916ef67f8e1dfa6a0c98ebb604e82c6a27f47f6",
    "signature": "0x02011ea3dc2665fcac9ecf04bee6dee5156a2c32a85c7b8eda991aee89a7a0cb715b7c4f69074824fd9e5b371e76d9b9c0ef40ca861fc60b5b4b735a48f0bfa71c",
    "signer": "0xfD98e1e1633d68e24edC34Ba08E36BE54aF72f4a",
    "userId": "893473168"
  }
}