{
  "manageEntity": {
    "action": "Repost",
    "entityId": "507652055",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd5cfdfbe2e453dabe4294b85d9d0f5ec0e76514fb0f37243fa7ee50378acd1e5",
    "signature": "0xf770bca9eac146365bf4abac13d7578c774ae961f6081a0bdd805c5eb1b9dc8604fd049350193f07dbefc6d95e9abb133ad30c4d970d148dc3e86b6abc320c091c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}