{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310483",
    "entityType": "User",
    "nonce": "0x3322c6ac64001afc30decad7e378d27afbc2903d017c1cc6aea2109fc3e6d211",
    "signature": "0xd44310910e502caa61fd802989ccfe6ceeed61b6c110194868f68ad3e4c221aa3494c019410817c1fa258b63f931839a891be3def482ade3c29d338832ba7ede1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}