{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0ec293696d16c04ac34b6f0452e0b47a4db66783f860c3a2263716ded297d8b",
    "signature": "0xa2514043bedc8b7ea38d41d37c66a10560163d4beae24d3c7643f35189cd9d44691c3a1df107bf549820a8d1ed1361c732fe191aaab31784778037064abad14a1c",
    "signer": "0x23fe9bd3ec62BB3a6D5EEAae9284f507f9bE8280",
    "userId": "597089050"
  }
}