{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174543",
    "entityType": "User",
    "nonce": "0x4b8f404a51526f545f7ef6a46a57ae046fd47db7ba9229bc91d52ec53a3c88bd",
    "signature": "0x83f08a1df2cb07a8544c59286be2165fad1ae5e53660efb59aaf6117217b0e24240fb0cf3ea538ebd7023305ef86c94efeab386de521ebdde244c38a04f9d7e11c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}