{
  "manageEntity": {
    "action": "Save",
    "entityId": "1170164339",
    "entityType": "Track",
    "nonce": "0xa4277f8e64b4a6902fb5ad4c11275274ae0190526d4bf03cf3aba82b5193c9ec",
    "signature": "0x90c4b29823d6dd91c315393d11dffcbf6f706d26caf785868f946f42842b026028a73b0ae9fb02b37f65c2932b8ac0fda6dd8a683ddd02fe371597b2e8f7f81e1b",
    "signer": "0xBBBE9eFc177a4E708d317195Fa81aA6E8E2F7E92",
    "userId": "557135181"
  }
}