{
  "manageEntity": {
    "action": "Update",
    "entityId": "979575918",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa702eac8666f7f337ee7d13b4c4dd49e0ab3b0576535b324ed0eac6a734ae9d6",
    "signature": "0x5e22ba7c62fe825ecfe70b0aea24bae3b5c27c1541ada851ce76e86fd141b4144fff38ce4c05733f7fd55bdb1647481ff8857b1e1b6f0a76fffcb12affc66b621b",
    "signer": "0x9053379e994f9cA132135BB6Db06677C412EaCF6",
    "userId": "979575918"
  }
}