{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "658703690",
    "entityType": "User",
    "nonce": "0xf9369121a1f900731dc6ebcacb49dd808cf619d1da560da06c4d2e72238bbc6a",
    "signature": "0xe5e816147fe3e348cf8b9ab2830e5e0e6518a29ce74fd8c00f888f98bd48f36c19ec846180cce1bf9d77c11f7445f247e9f7620b88d53352e3f8e41ac3f8f8661b",
    "signer": "0x7E87F92E7d4bA0548813Aee79cC4B1d66F07f967",
    "userId": "268393061"
  }
}