{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "410641634",
    "entityType": "User",
    "nonce": "0x546de18cfc7e73aed0ffc5bb2a2f5799fc19e75f94d8d628e0a0965907257c0f",
    "signature": "0x3d49533f2caaa98dac4588201d9c9d7866db7d0484b05c85bce9361e24d29657567bddd576184b7365bae178bf3be8c1a9dda1c7126bddbfde130f938f6d26de1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}