{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326408166",
    "entityType": "User",
    "nonce": "0xd72c1fbe05e60e863ab3e381ae887c0458ff5b5ab94f1a827fb65d748df9d7f1",
    "signature": "0x6b17d26e793fb7a5e90671513e586aca5889cb5cdab00f1aeeae4bee58711985736b064717a7501ee4ed7e8babdf3380c25510efb499cb5e904befb44d56d4f31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}