{
  "manageEntity": {
    "action": "Save",
    "entityId": "2096338024",
    "entityType": "Track",
    "nonce": "0xca59f2824f8b10f7282e5150e50a31fab0b2035e055e6105c6936ff72a1ffb90",
    "signature": "0x7a26c5b0f8ae19b192fefe5570b94774c2e5d6951d56a3b3620a634fe1fc47e913bad2d3ade185634a462eb1c59d166451f669632f5066f1fb63417e7c0f5e731c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}