{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50268b2c7923569c4e63d54d08d38c4cff664361be757fef035d030bb2010241",
    "signature": "0xffd59ecef6e66409f75cb3267cad21e0a93573a4c9ed43446fc2a9d33a0e12ed6714b1a91ef025a1384a8d0e6aae774de7cbc868f8745f36d103b0260ef968681b",
    "signer": "0x6D0F08ED4F67eD919545fE731F99333c6d85E9B5",
    "userId": "403945940"
  }
}