{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xcca1579d365b6644ab07cec08090ff0efb28e18aee9c01ed9e6deed5160d079d",
    "signature": "0x4e38ab99e89c257e81aeff134fa8323f5b5a86d322fa503d247137bf46128d48163c26a290d209efc2bb29a8d9388ce97d32da57acdc65cc0829a2b5152ff4911b",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}