{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1621271311",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3acf181cf71259d223e015c1264a7422bab581e3570b6cb57ccc50a67e5fe6cd",
    "signature": "0xe205ba8b261e3c7983bffd55f6d05b6a6b1729dec2356ba5f2b9ce241aec0b8d47a86b1c6fa62100e18e5cf91b51ad787b8adfdce6211b43fe7fdac9cf2d3f051b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}