{
  "manageEntity": {
    "action": "Save",
    "entityId": "230054286",
    "entityType": "Track",
    "nonce": "0x8e155f27702c577f40afc5580ec4bbb7afc1bf1e2230ed6b1e6390ef494ef09f",
    "signature": "0x8577d4c400eb740996e61d5bfe36b65dea6d09939e889d5cf808da93504dbfd4662ec3ade7d7e4c68894d818df41d2fd6edc7103e9e22463ae259fc780546c1b1c",
    "signer": "0x8a278E79c8E7e655B94c3e6798972A44Daa2c6ad",
    "userId": "24098924"
  }
}