{
  "manageEntity": {
    "action": "Update",
    "entityId": "635618052",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8bb8eca30ad4d1fd7136565099cba7d95de60fb7e7fec50e8cd7f203268edc4b",
    "signature": "0x4977e4a50ce00f9cd4d955a3f68a1c14bdb88fd1b36bc7cb9872a222200cb7fd4474919d5ce0a18999a90aa517603bf0443d22573f1dca0c04e84d307074f4cf1b",
    "signer": "0xBD22138a7760a04d411f4473A28C34F1b1205c78",
    "userId": "635618052"
  }
}