{
  "manageEntity": {
    "action": "Update",
    "entityId": "162601604",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8ec6c688f9e614e2fe7db5576f4afc5837665981c33d05a24d72eb9a897b692",
    "signature": "0x5e45609efd67c6471c64c17ed161e22827cdff3d6a7eaf66890ed785fb2a2d59290b90416139dc3b5a2661ddfac216a4fa894a47e4c0f18e34a4c18edffee7c31b",
    "signer": "0x3D7DD1f4d5D29bb054fcB0E9f4A2eA344413fbc6",
    "userId": "162601604"
  }
}