{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7815",
    "entityType": "User",
    "nonce": "0x3b75988295e7cea739d8ee49d459518a046031071a537eccf348c48c9cbcc60f",
    "signature": "0xd0bb9ed4623ead33daea4d256c022bddd67e968b4bef33224c57cf88d3c546fa5e80479be54b8e1d9ca66d4f91da47dce5d0c9a938d8af39a00ffbab4b6609a21b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}