{
  "manageEntity": {
    "action": "Update",
    "entityId": "530236516",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3fbba269c8a9dea891b3d202cad681815976595b9e4b33266873b22f9165ac07",
    "signature": "0xc9c99c1e713d6a17dd31c5cf9a605583dc50cebf07181db96ec4f344ae4afa2026d9a42c376056bd3cec0d6ab09cf9c73a98953a76d3d714689208830e2ad0561b",
    "signer": "0x6EA7E7d30eD7f9423cBA29A32493E23A8a8080b4",
    "userId": "530236516"
  }
}