{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145965",
    "entityType": "User",
    "nonce": "0x1f758588c34cf11a9def755a2ab70ea90373b34f04c5aae109a4f80136b78734",
    "signature": "0x0cac52311bf10084110291d5ee86f3be2c0b28a814123cb86b3e2193d6d1d564749af84cc2ef7f2f18115afe6ab91553806e010cfb5c9f0a47599cb42b0ef2da1b",
    "signer": "0x683652A4dd5A3C6d1b00eF3f7878768e3a78494C",
    "userId": "310841670"
  }
}