{
  "manageEntity": {
    "action": "Update",
    "entityId": "702600438",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23346ea3fb5dbf0e493fdb33a2edd492eb69c38a1a7a3482e41683619adde8cd",
    "signature": "0x02e64376cedd49b1ec1fd492dc3e04a8ba4d147c3c23713352da408683ecbfc0796f7cfe41239a2fdac36a50af6eb84a179a8199f2abf0a41ecf22ac5b84e8781c",
    "signer": "0x851348457961822AeC660A69380a1445B66F65a5",
    "userId": "702600438"
  }
}