{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0x91d6cd518c03faec874cb654bcb548b5b96cd7df3f1aeceff04f622b7b6dcdeb",
    "signature": "0x3a78d0478385c8efc5be760258ff1311a98f218f23bb9a18bc6a77400de33bc63ba7342e0cec064450228825f161e7bb81dc27d0a2f7ce66fa1ebbecc59569b21c",
    "signer": "0xc0621be31c1D1B62b94F2d48eE34dD3c3dA9D57d",
    "userId": "161438318"
  }
}