{
  "manageEntity": {
    "action": "Save",
    "entityId": "159622",
    "entityType": "Track",
    "nonce": "0xa28fab0ff354bfbfdf2cdc464fa848b9d1056420a5f4f0defb30be9e6b516abf",
    "signature": "0xda2eba847a067782b09d5299da16dc5c327591138dbd229c17761a1275db9bd9014234706383e5a50827210861307feb2de0b4d7119275fcc331aaeebb25e2351b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}