{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220810",
    "entityType": "User",
    "nonce": "0x19a3293a162cf9d687e47c4026e0de85aceb81f8e7d41f2c5c4cde286271270a",
    "signature": "0x95c33370409adf45dc6fd15dc41d63b11a5c54b90daa1a18807a69602c9be6130e8bb28ab6e526ba2bb871f2c33215bc21736fe80cd1facd7cb63dbaab6f27ab1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}