{
  "manageEntity": {
    "action": "Update",
    "entityId": "87098503",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3a720098bb213023708e04dbee2ea9dda2ee6ee69a59cd86e69912f8e70e5473",
    "signature": "0xd6128d8361febab7b2e02d3a825f82887a86668fd486ac4b0690b8edebf2e41f1beca3d9ec5b74a3ac13ac508b8403e05522f178933f763905e26084a17fb6261b",
    "signer": "0x8525f92f27ED97047EdbAD2569e59b8EC22Fda45",
    "userId": "87098503"
  }
}