{
  "manageEntity": {
    "action": "Update",
    "entityId": "407046354",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x553f7c0178c4aa977ab9214069e138dcd8ca85d8261a699008c7186f4ba1658a",
    "signature": "0x30ee63c57a8e206dcac4cabea2e4143474526e6eb3e61a4cf835be81819e4db37adfd075c413f2b8c661886ca7abc9ec363c4f45706fd0adfde0c5c224ab2a901b",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}