{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28768",
    "entityType": "User",
    "nonce": "0x358bf36cb3faa876afa87515b840e85c3f8d5c1fe1fee9849e6d5ef17114e052",
    "signature": "0x6a2a90deda11ac817dde5bb87f1deb6d9b18100cd3f5ad367c5993caa4a5b09975a168601c19326b8f81fefdc771c0cf391e32068cab269463ccf6b988d28e561b",
    "signer": "0x31486898e68E355292Bd5aa0261Caf9AfD79dA6c",
    "userId": "199526646"
  }
}