{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1499942515",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2b70bb3c955ca4e26c0b68aed477e635577e9108efbff2a230755bc592a81a7b",
    "signature": "0xb787d395b8f3c08ab48e2a034624f94195105f87c11c358d775aadd4f01e31e559ebf956f7ce68a262f4f030d44cc38542cfc02091fa649c69a0fdfc5af4d49d1b",
    "signer": "0xe9B3548997c57545A6352D16A021F6df1a01747f",
    "userId": "616597835"
  }
}