{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa240be94a78137580ee96d763ec3e9f77b7ab137368d6d70d6860553b277359",
    "signature": "0x3171eeef3a51ef0593e8879ceae33f2929da06ebe2555b4c516c478bb8ae061b1c3cbf549da76dfae80e6c2a6ce8d26ccd61ed87b98e31162c538e470dd2968f1b",
    "signer": "0x10A043c0aDFaf618D514194e2fFA9FbABCbE4350",
    "userId": "993286520"
  }
}