{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x7e0e51a80b5bb04e831ea3ab31b0ba98a3f97b3695242961797263db13ed6029",
    "signature": "0x471e79a0978379309cdf27d04cdda5569bd9ab12af3a66486a1ddefee1a115e76388368982137c0dad0b6b91360b0a6c3f01711ca6690c00f0da4ad1d76f4e441b",
    "signer": "0x3AeD7e119d14B0BA01d38E449739bcdc1F60A66D",
    "userId": "36359702"
  }
}