{
  "manageEntity": {
    "action": "Repost",
    "entityId": "503850",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9a2a80ccbf931bb2b271bfe2bda1aa6ddcb02354f030947b0d731af2e53353c4",
    "signature": "0x4683b351078e312414c23a721ae724c49e78664fa50ff5ae492f8dd992049dc97a2119c81ab56e008fe794d8481c05cd9d90cc4b6542511399149e284b7053781b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}