{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "566075266",
    "entityType": "User",
    "nonce": "0xdb667edbfe0c56cbeb389b5a243a60a18ca3a4c8fae08d3fd29b6af208ca0274",
    "signature": "0xb535d68faab23a77def8785e961e45794c817a98a0eaec36f71d9756589e4b3b1dcd1871cafbc3214bb9060fea6a60af1710e5538f83160d15c350a530c92eef1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}