{
  "manageEntity": {
    "action": "Update",
    "entityId": "274103904",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x43dff5959890353e54b2dac69802be9b95aad9061f3a131b925a81feb6587b26",
    "signature": "0xa5f26771be6b56cd2f4f08d77c67c4895dd3eb5dc571df6b7c3ee4d4cde88f516b71508f9995b23060351dd9812b43aabbeb6d39c41f4ea34908a14410e46b291b",
    "signer": "0x335b8cFbf49f09F41aFf9BF281FC4fA179574606",
    "userId": "274103904"
  }
}