{
  "manageEntity": {
    "action": "Update",
    "entityId": "757492964",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x35630e908d078944b22e0ee69b6a29cff4949e7e005b38104e58e1bd53d6f47a",
    "signature": "0x8fcd20a2e4efa8567925c0e2bb1f5d90a3594fb430959b71004b9f19d423656d2acea0ad52c968c6fd57e55e901219868be52c9b4a2c73d80616d24878ad4f8e1b",
    "signer": "0xba266E8eE950a069Ab77BF24c8959a2177fc87F9",
    "userId": "757492964"
  }
}