{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0x7d11e76e4b6d42bb3485b61217cbdeaf1c1bc67dc9edeccc4fa823f5ed605c1f",
    "signature": "0xf2a344fdd1d5d0444f7606162bbc5bc3321cd70f0ca6a3b04c681cafb4ed1cf62eabc63046151258fb8ef81b85c08bf19261a4fb6c2f2bc5015736ba49e792fc1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}