{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1cde7f4be8533358bea09b2869567f2d3d6987eb29013e370c6c9aeebc300502",
    "signature": "0xb6307a803e69874946c0fc900703b592b0f0b662fd691e1f69f41ac660957ec75fa2603d2a0f50ebfacbdd4cbf236aa36d3b75546517b0460c6faa36e718d0421c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}