{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106972408",
    "entityType": "Track",
    "nonce": "0x54cdca6befc4b79c48b9150b9ba99d4b6799fdf72fe941601016694da48edca7",
    "signature": "0x2fb18a4e14fb6ab2a71de699e178aa52958471694cab782b6f7d41f873eaa2bd1134f8d101d722438a883d178332951bd370fcc262e1bf2a5cfc01e8993675bf1c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}