{
  "manageEntity": {
    "action": "Update",
    "entityId": "853272097",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8656e98584318449358c36fd4e38d7b84cc7d8bed599dd298e578cabeecdd18f",
    "signature": "0x5719f4331463fcaf41536521d742e2cecb427d349343cb58691fb8e8edc057b47309df182ce24500e2d3c09bc1ebbee5ad3137c7e309404afe04633790c8c0b71b",
    "signer": "0xd10b0c532712bA7148339122a10E85f46cB94b2B",
    "userId": "853272097"
  }
}