{
  "manageEntity": {
    "action": "Save",
    "entityId": "326189515",
    "entityType": "Track",
    "nonce": "0x244f4c9eee078e67785502b88ae5e478ea58ed278b2f4eedbb41202367f47deb",
    "signature": "0x3388f3e288f20714717d3144333d1e51f09b1a1729dc0f52e15b9d8c959026510bac141bb5aee33ea8a156c575594c315efa6280e496584e4a37e56ebb48f51b1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}