{
  "manageEntity": {
    "action": "Update",
    "entityId": "591026455",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x642c59975e95bdf4f8e9f9d8c023f3e05e284f34af41652e9259731d98df4914",
    "signature": "0xb0b5c525142cc313c224441c5c3ff09dd766fe0d4f515a0a5556fe0b6f03308b0e2d6e96b0162219bd81409800a9a77b7164a2cff7caddc81b7f9be8c677120a1b",
    "signer": "0xD34A2079d464FB6656A17fe80b91E564C4bA0588",
    "userId": "591026455"
  }
}