{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x4cf0898a2d1a92587f7941a1ad3f4e82db931bb75cbbcdb91cea988066420793",
    "signature": "0x38eff44068cbb7fcefb7ce51043cd8165c871bc25ff7cd799953a7720d9eaf240583fa0ee1e054698267b2d951bb554b4942954a740fabf2a98e2cdf0f8299151b",
    "signer": "0x23ebb94B5Fc841626e37a0AEa3B06dAD3A4cfB27",
    "userId": "279409147"
  }
}