{
  "manageEntity": {
    "action": "Update",
    "entityId": "903251667",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3qhsinfa3nztqhxx2ynlkammabycnrchrkjlzcdg5lk65aavh4va\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":513918041},{\"type\":\"playlist\",\"playlist_id\":753168770}]}}}",
    "nonce": "0x4c61cdddadb56a1abafb494ea5202c15eca869caf920b145f2467eb011f207ed",
    "signature": "0xa3502f420a9431b30ec55bf12dd49507133467f0d1d34cbd94cbd52613368e432942d0d3ed09fa3eaf644a9320801379c1c3c0ff071f33f35ec0b09f3645764c1b",
    "signer": "0x0bADAcB5BD8eC37096c8448C192eA49B12c4A1D1",
    "userId": "903251667"
  }
}