{
  "manageEntity": {
    "action": "Update",
    "entityId": "670740644",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8f2e8e10d4634d6fd952a6813d86d68697743fced1c2636dfb14f90d441ad306",
    "signature": "0x0fde8d5ea63ac0bc133e119b90496bf3f3b5f91875002035fa6747219fd0c9e236544d8fb8ad437ed8ccd1e8655657854a5c1e4f0d62f0cec51a9a480a70f7421c",
    "signer": "0x6804E386aA5d5f4aEfad8bfb407d8d1b3676BD08",
    "userId": "670740644"
  }
}