{
  "manageEntity": {
    "action": "Update",
    "entityId": "357690510",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb0054fb360a68e160ae7d71172c8908dcdf39c0977a6bf745fb99fc52bf52855",
    "signature": "0x033cb24b0d5f1e9e5fe6fda0e56706877c3e6da061886f521ab1d6bf85f1add53e0d3ee29e2a4c3b1d8c8df9cd7783c14002f67106a8150223e6e6be23956d701c",
    "signer": "0xcfA4A6Fc9E2A2bB730A223F73486298Ed413aC14",
    "userId": "357690510"
  }
}