{
  "manageEntity": {
    "action": "Update",
    "entityId": "319590005",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x06b6608a437100f7eb26cb89df935a9671637bc994f0e8d0f646eb232c8568ec",
    "signature": "0x23986018de7f73cf8f6838cea3063cce55edf66f92bc782bfa777c87827ff54e67f8ffd018360e5ebbaa5a772befc4289bbe2fc013c275607977dbfc81c274f91b",
    "signer": "0x711593aBFB1733F1c6Fd17CAd453D026c8b27348",
    "userId": "319590005"
  }
}