{
  "manageEntity": {
    "action": "Save",
    "entityId": "111156",
    "entityType": "Track",
    "nonce": "0x0fb5970398a1822557650cf3803e836f65e93d6ac056b4f788b849a0be86d2cf",
    "signature": "0x75f47a8f293b86d6990117a3c91a3938da4faf54560e5a04e79e8bb4e4c8764746d6f9f19494221d6ea707e04ebd432c950c03d00cd7d88a5003687a8936478b1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}