{
  "manageEntity": {
    "action": "Update",
    "entityId": "875705211",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9f4de661e6e413edcbd6c76b64bed1ddc85ea474b28bbd08301023c64316a3d7",
    "signature": "0x4d5ec0223981cb14a774d56d5d9f601eaa3af7665b805325a9d00480948c9c5e5e1535a359d08d1410bf89db7b0ac5d160c93a7541edd824816842814f6128941b",
    "signer": "0x61A3501FC0915E68db168ff7922e3666694F1b23",
    "userId": "875705211"
  }
}