{
  "manageEntity": {
    "action": "Save",
    "entityId": "1922909552",
    "entityType": "Track",
    "nonce": "0x613296df46fba4eb386e3ab7cec9bb70a2a6af478657e8f24674e8810d0a86cb",
    "signature": "0x4b14ab5aa7956411f72ed8cf4ba0e19a4f50fcec3c05b0d1c67723200c81bccf208cc248a03bcf162aebc3e1b56984ba1e747e5e6277227b7f241fecffbdd0e71c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}