{
  "manageEntity": {
    "action": "Update",
    "entityId": "340698045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x194a609e74664e1e80ca64b9cd4e105bbd0feebf992e7e3c6eb4b2dc8c4c1ef2",
    "signature": "0xdde3cd5fc4a51d5c49616194bc41faa98c4a1715269f9ed4fb40b974634ca82568f3574fd954fd22680c7e5eead7359ac7d5f55c07ffa07e7e9770bb11cb17b11b",
    "signer": "0xC0A0a2275bEFD96185C2fCB4671BDc3c0792f95d",
    "userId": "340698045"
  }
}