{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55579",
    "entityType": "User",
    "nonce": "0x2752851bb48b0e404501b81d307970f0ff477156876fcf801e03410293417421",
    "signature": "0xe3094d7465862ee5d500e0bfa023c3f8b2b3b7c99c441599a9dd8f7aa9693d452453db1f2481530c0775dd664fd8098207d45ae3a8ee569fc71f15afd995dade1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}