{
  "manageEntity": {
    "action": "Repost",
    "entityId": "619517777",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x85ecda335138861ef46f98185f9023bb1ab81f791b2483e745c3d984170e4c01",
    "signature": "0xf4214284ca843105f1ae57d8fd7291e8db0ab29215daa397c2e3dd9c792e701e7d1ba1dba678eca1f029d4d2476c2f32f5be2458d5d8230ebccf7ff94e4c7f4d1c",
    "signer": "0x53f39D73a2dd51E9e8A362EF3b1383072E37cf26",
    "userId": "74209883"
  }
}