{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x848e7aa4ca9172211bc615b81f9d7fc7193f776c153132d98b04ea9c43282893",
    "signature": "0xaa02f37bd591cd859087048fed734ac7ebe178a19a0ba6acc406552d53ea3b8467c1777c06777c7bfaeb7a1a7e8aa9f6dd4b5f917cf2c64ba2c750b9e2716b461b",
    "signer": "0x0f05255c78C35A681371aBdcDa2e6ba9C60aAb57",
    "userId": "671531606"
  }
}