{
  "manageEntity": {
    "action": "Update",
    "entityId": "85051708",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7a61237e22572171566195c2de09067f0e9239962ee8723492faf904bc83c3e",
    "signature": "0x877ea5e7c35fe157040e29b0b5f889cc698520e2ea1f66a8042d34388b9332b07b92c435fd7e5100bf5160c56fc2aa640104d5ce81c6a4c553c1f51d392881271c",
    "signer": "0x9976A5bDB93F69653188778fe013ed45ca0c2Ab1",
    "userId": "85051708"
  }
}