{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4701169059e7408743337c62ae06d4c336e7f971d48f462e6d27802527e73a1",
    "signature": "0xf6e305bb65e79f585b81e18669d1489f96e915062eac46c272a0deeba5fd378251573ab3d546ded3103fa05205a8d75639cef5033c60586b9574ebd2c16c36a91c",
    "signer": "0x76f762a21bF9d5e3dfcA256F2FA36ACb298C6a15",
    "userId": "912435990"
  }
}