{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "803857684",
    "entityType": "User",
    "nonce": "0xbd6e62df2fc72a62bbaf4d207470e73a1e3f433b1825cafc05474de90a9684dc",
    "signature": "0xa90b958b2c22ad0521327b131709e0a9d6f107c1f83f336426e70e4799f84f134e3ea1684a3b3e523b01d8d2d6c4ff6ab3837614a68f4a8608722e2b06f033c31b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}