{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xfb02407eb1b6ce31e0c1340bcc85e425f955358a397ce97f7d76583743fb2d37",
    "signature": "0xb82347205339d269e22ff2cb82488934d53fdb14d15438bb8ec24c560574c1127061913cb85647139c64077c220df0edc86107cbc2714ec5b626f6a1809b23c41c",
    "signer": "0xc381438f5Dfd2C197eCc12cec71d4484646573E2",
    "userId": "98972725"
  }
}