{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11003",
    "entityType": "User",
    "nonce": "0x8654d6b6a5038adaa5481aeaaaf4398aa0ac0bbaae104ef13c30173c3b21f0c5",
    "signature": "0xf8c184c7b955b05e8788e0cc9ee6f9ea83b26e4057cb076eb139a7c774348fa40d72c058dc52617318b7b5ff9de323fc0f3bf31425ec8477238cc2caf8d5ee0d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}