{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1d03dbe7c2ba34b3ddbd1dd2c6e5f9e2cc74ad1b7b21052465d24fb45f22003f",
    "signature": "0x038bf75d125515e852ece99aa9d5be3b304e6e3ae304ed33a6167002dc7d52337a50d4b86dd7d9ea2aa1943124c8baf5c99733b0a02c495ee9e1adb73868aee81b",
    "signer": "0xe095270D38f4ef97b96C4B01cf62B33f20EB20A8",
    "userId": "352212248"
  }
}