{
  "manageEntity": {
    "action": "Update",
    "entityId": "379049755",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13c9dcbe0f7eb92070bff50287b66e7fda3d789a2999b456e936e008652d52ed",
    "signature": "0x68cc6848b6eccb136366024b2ad2d813e59b18bdc34aa068ebd9ae16cf75ef961e942c2ec577fd9cdcafd0b368f4e1dfcd68d0bb9316519ee115cd00c27389af1b",
    "signer": "0x3116461C509484705cE6DE4646588F6F92ed378E",
    "userId": "379049755"
  }
}