{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fb942a84e238be99e24e9295fdc332764312c772f4ee6f1ca1e0f6f1f2f48a2",
    "signature": "0x8af110418ef12ad4c45e3e31650b4d5949c9a7fa9900e1db3ed68d2fc6dbfdad663286b44424ccb093d43ebe3c97fcd4a8f1d0430218fe27ebf9afa81f6020591c",
    "signer": "0xE8D6E5670A532CCA8099b7a222615B795D7E17CD",
    "userId": "617481694"
  }
}