{
  "manageEntity": {
    "action": "Update",
    "entityId": "526336200",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x990910bac274bb2e698110750c3df957615449ff62bcac7663fe3a8ffc52314b",
    "signature": "0xaac56825c07ec8641fe3e10e1ab901aecfe5f2daed03a6adab0dcf4d6b61cf020f47b92fd27886b6d1a453a6033c924534134dad5cccf5734fabd6bac8eedd581c",
    "signer": "0x07225d6AC19d4d167B0583F7eb85024F3353d1a6",
    "userId": "526336200"
  }
}