{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621756319",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x04fcace6aba55a64f15f80eb047deb038fc46ce3c66fad4ef71c04aba2e42e30",
    "signature": "0x972e00f8715d7c5eb05ef643c4227f823c51465a33c377689173bea5ec13ca4952afb494ca0ebd74d600af77faf6daf745874ec1b72e72eeb0d3b19eb68faf6a1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}