{
  "manageEntity": {
    "action": "Save",
    "entityId": "276069",
    "entityType": "Track",
    "nonce": "0x1895e968a8d65c8d499b211be724f7b21ba3af0eb87401827ef41644c130b460",
    "signature": "0x43405c2d09aa8270cee265b6b7c2557196fb743df2d6aea27080bdc7acbb0972251ba9c7c77a185c1957f54d2a2aed3be0b62ce312b851abac58b848f67aa3b71b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}