{
"manageEntity": {
"action": "Save",
"entityId": "971645",
"entityType": "Track",
"nonce": "0xff5cb371a4f00463d196270a96c391a9847e60751dbc945ba748c88a03a3730f",
"signature": "0xa6a91529a14f3437dc202639c0c096617f67f077550601bcdc3e1b710967d40d28b56019bffd58db650fcee97f3fb51e54b2acb385356e2e609157d6a0fc83101b",
"signer": "0xbcF27CD259a120e92577BC7a7EB95670b3A0E2fA",
"userId": "105402635"
}
}