{
"manageEntity": {
"action": "Save",
"entityId": "1051270269",
"entityType": "Track",
"nonce": "0xcac7fa659f5104306389a9cca96f205a2c3752347b076a55ed51de5cb2089aa6",
"signature": "0x04b7b2a7eacf4616ce40a85cb7aef5438375843d204dc96222d04f395b019c35326f683c7a63f791d963d2c771088fd58842a424f7cb20dd7c0aa19fbc99f2501b",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}