{
"manageEntity": {
"action": "Save",
"entityId": "279946157",
"entityType": "Track",
"nonce": "0x97266cdf728d3a456e734480c8c51ce25f4e4ddb66b14286b1eb7dde4b68a0bd",
"signature": "0xd4e9ff9e8a2a8043adcca5b9cd99b20027e4834a8be26e551365a9afcc4da430554456a14b379332928f9913d4d8fd5b7b5d041e88faf9532cbd3a5042fec5d21c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}