{
  "manageEntity": {
    "action": "Update",
    "entityId": "395760110",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4536c3cfb85a141ea58cbedc4ff027857b76b523c0610e791fe0c20be828d78a",
    "signature": "0x67dbc3523d4168722a110601f7ece7a357680e90ed37a683bb5e6cfb2998568c0843dc6b3028b27f43eab769710fcd9f49ba66890d25b148e81f0c20a0e32a251c",
    "signer": "0x70559eA08FdCc5b0de1d03FdC7571c7DD8E49fAa",
    "userId": "395760110"
  }
}