{
  "manageEntity": {
    "action": "Repost",
    "entityId": "503418607",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x196db3d51398fccab434becc3304463817c7685a1daed361db6b49ed01fa4c7e",
    "signature": "0x0047110ef08256b344a18c93691a4474afaff94e88998da5c9d6ab37d68531b00312dfa6e47f96ec7714034efcbcc167c998498e4c4817ad3c1336fa33037e8c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}