{
  "manageEntity": {
    "action": "Update",
    "entityId": "912395548",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdf7330ca0ee950c983d53894c93ce562df674b463d437530f6d2dbb1a88de967",
    "signature": "0x2b9552112387a0e1786b810ea5506b89e0e928b803e02751b32d60cf3afe37015134595ab6e77d3e17553b1e8aa5b353cecbf9d55e19c4ed26d96ed66a058a5e1c",
    "signer": "0x84Ba6409f51c98704af9F6B5fB71a8c9CF0a6661",
    "userId": "912395548"
  }
}