{
  "manageEntity": {
    "action": "Save",
    "entityId": "1060771315",
    "entityType": "Track",
    "nonce": "0x76dcd7bfa069a4e04b7f139e48a656991017b87ae8b32e3728fe32b0048de284",
    "signature": "0x7a5fbc44c5906b0124b2cc6345797a108c1dee41c1dbaa9e25cdc60f06d9d2266cfeae3f62ab138bed298bd808c56453717580f8be459c631024f4628780fbc81c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}