{
  "manageEntity": {
    "action": "Update",
    "entityId": "273948816",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a929751f6f7a872b2458c4b3aefef0735061a23e9821a99cbc5dec504ccb6e8",
    "signature": "0x3e65e38969f59b2530954f6ed4d2bdd853e6dc16dab279e45228acd8809775b7073021fba0fa0675ca6af1742528d99d8d27e7196322f6e324abc85a61d2192a1b",
    "signer": "0x7FEF5d952f7FB3EF06D25Ea2084E4DFA08550aa0",
    "userId": "273948816"
  }
}