{
  "manageEntity": {
    "action": "Update",
    "entityId": "392320637",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x504cb88ff595d9e58f83e2196f467a73750c1f22b1d5d3ec205d1f01c29fe170",
    "signature": "0x0832169b8d2d4c357e156911bbbee47bdf5e30904db3a127b3a8a83f13454ed82751828c822014d7021a69b39dff5ec960d5627d0f60cdb1f5209033863c720f1b",
    "signer": "0x363693A59feAe370750D0B9f2E8bbD445a8b3e28",
    "userId": "392320637"
  }
}