{
  "manageEntity": {
    "action": "Save",
    "entityId": "10795479",
    "entityType": "Track",
    "nonce": "0xca26c4b0e92a5b9e3fbe0567d21b8bdd0802b8e79c0c1a549226418c0ec9bd7c",
    "signature": "0x137ced998216ab27a12053e493cb898c9d1adfd6a9db83a66f4f38dd7d17bf8e70ce335e54d4f437e96f70f4885d0ad430bec8c7df3493db1924f15433460d871c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}