{
  "manageEntity": {
    "action": "Save",
    "entityId": "1059101",
    "entityType": "Track",
    "nonce": "0x4a020a6054b821c3e0e2148a0aadb73bace11b899d8650e617516b3f3b038e51",
    "signature": "0x5860dc52de29cdeb573ac16a20a381a6094846fcc3a72e6a7116b0019c9bcd98269157a9e30e90faa76c773a31148bea6d696f48e8b41d3571da8dca95c87b4a1c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}