{
  "manageEntity": {
    "action": "Update",
    "entityId": "402172867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieragdjxmoklrualomcn2xc5p7af7pxmronwpf6e2e3mpmnb2khmquca\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1644422409}]}}}",
    "nonce": "0xf583568ef39b76bfbc0532d2a065b9661f953e4ba5c3d5bae4e510769ce2f614",
    "signature": "0x876b94614e1eaf59efb055e4d359f66e29e3ad983377805ce461b865e6dd5cb92f80be2eae86fafdf72f527d5a7ff5a3619bd094ee5e0628752c2b749e9f59f61c",
    "signer": "0xf7B86B7134F78bfCa140E59e3a13a697Ad29dD51",
    "userId": "402172867"
  }
}