{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1419186176",
    "entityType": "Track",
    "nonce": "0x333371af069b8b55f994d936f4a89bfe079768bcbe0df1c1cf64241e6786b602",
    "signature": "0x893f6691b65ba7dd167bbfb8af61c35105692046cee64eca864d707a53ab0aff32404605580659d7ea2a11e5aa41a1c57ff25d07d4d99ee5f59af41c33d50c3a1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}