{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406395",
    "entityType": "User",
    "nonce": "0x0a589be91921d3323649ad49e81a9d915754761bb20f3b854ce82ad57a786425",
    "signature": "0x0cebf3e5d64ad6b71bdc72b25fe609484809148ca691fa2fa3537455032b63ef0dc739f320053c19af4ca7b6726faf2e5f5d064fe4f5e5d2c1a8c2342fb5e2e71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}