{
  "manageEntity": {
    "action": "Save",
    "entityId": "114850293",
    "entityType": "Track",
    "nonce": "0x1fed36e6adb8181a04677cc4b054cb513185eb7ec57e2f34752cd58bf461a31c",
    "signature": "0x97c1208ff53f7dfc1aca9668265ae084499737108c9b9d80d4a61fff1342aafd75474b43b7cda93e596973c70888e52b3186869d488a7e8ee378648b6b8a67f21c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}