{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6fa08c931295104c8ccdc14bc4b76b69f852fadb0d7ae8fd4dccbaf0e472b2e3",
    "signature": "0x4dd4e89ef7d710ae87438100461e2b140c69fcb649b7552de70b839605d39ffa7c0ffb3e04a63314b637eee4f8b28ef1987a23d39151d195f6cde76a71aa123f1b",
    "signer": "0xC8a2D4De6500FfEb2FC29DF459E04c65307Ec114",
    "userId": "595622456"
  }
}