{
  "manageEntity": {
    "action": "Update",
    "entityId": "625220598",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7c3e7a8acce3fa7066e297fababcba2170728f38408f7de5bce03372e8871dae",
    "signature": "0x25c6822fda7f923d8e6bb1731908c5ba3ea0befacc7876a07fc78b2e06a2f4370ef625ff180e034875d815cd5e9d8367e8a164a368c496203e07c7427550b3c81c",
    "signer": "0xF8CE7aFa6c75Cc913a4a6FD983a9282107A368ae",
    "userId": "625220598"
  }
}