{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15642",
    "entityType": "User",
    "nonce": "0x8d391a37897709cd3919bdd725a3528b9416fd6f3c4c7e8e7d41668cb23d038f",
    "signature": "0xed2792ed04af41288648433b83abab8bbb13c2c6c9a8766cf1dabda54af59f6747a85bb0b4212b5dfb808c3b6cbdd85ac6c4a033059a09af2af410e7b2a5c7e21c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}