{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77755",
    "entityType": "User",
    "nonce": "0x2f9ec70161612d4be9f14a780e7f090a26d08362d26a2710ea9ae28a944375a1",
    "signature": "0xbfd8022229dc88ed2c526e47ea2778c4bb487d423decd2e87c6e574d52eecf0c3f80c98ba0ea60ddb95b81f4122cde95966cbf56cb259177ab5b1898ad3fc2e91c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}