{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4220",
    "entityType": "User",
    "nonce": "0xb6baecccaa122fef8ad9fbae1fd0fe1eaf448405762da3ada6bd6fe4a80b2556",
    "signature": "0x7e45f1b635c14ae230e516f18cb2823f726b4c07a2533808500cd2353876d20903ec01b4f68e723b9879f98457daae2e656d3f670da7d8d2baf3e94549407ee31b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}