{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77401",
    "entityType": "User",
    "nonce": "0x5ebd8b5f122f37f93ecd52df242acd2164713ddd7f36a2e2657ab117e38cd632",
    "signature": "0x7947d48db04ef58892d7c7deb8ebba8b737ffece86cc0733510193e80352a4c23eb6f550ccbe9657d73b021cd0efb1458b36d6b7b192c29d79a4a4d8a0d1f03a1b",
    "signer": "0x856dD60453733C7356ce2Cc02B884a7111eC7E6D",
    "userId": "15192427"
  }
}