{
  "manageEntity": {
    "action": "Update",
    "entityId": "891043539",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x261067fc780b143ad4aea2e6fa6b21ab8cebaef1b467299b6904cee0a631b30f",
    "signature": "0xb6c8b83c0be4032d8dd0f5b7dda6edc4c31cd276e9bc2d3900c335aa0ad7055960df386830582e9c32ff9298341f44d945b6f954a9c301e9e458c1ffbf17a66e1c",
    "signer": "0x02D488F979a6DD1B8b401E3403B6af7aA52BfC60",
    "userId": "891043539"
  }
}