{
  "manageEntity": {
    "action": "Update",
    "entityId": "218057023",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb4f9a699f0d840fbdc04b8b07ef88027a0d5568d674fa9b3c49088bd2cc16a92",
    "signature": "0x031eb545696e50e13289c040b1537be34b58a3c2285ddeae269a5f788802ea9a66b1e8c475141eb3aec73bf5a01464cd662e600e3d71a206158c7c973ecafd571c",
    "signer": "0x214095097a95BEded8b949BFb653a9395DBB13Da",
    "userId": "218057023"
  }
}