{
  "manageEntity": {
    "action": "Save",
    "entityId": "1018102390",
    "entityType": "Track",
    "nonce": "0xd91779abee121ded05779d26ca996df3be6787c7e23410277c332b2b20051579",
    "signature": "0x67f099923d0cebe5a82cd7373ced1200db0ec714ca31fe96beaf20963959bc5c6fc008e03a8dbfbb638f8c76dfcf09369e306b5aada346f558fdb05626f26aae1b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}