{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971292289",
    "entityType": "User",
    "nonce": "0x37dcc384dd581b7902a5f73ed41a2fafdb5e34061ed3667fff1b0841520fc16e",
    "signature": "0x7a153f472ae56098c8bc3763a5c1c839e4acb25efa035df4a5e424d5f2850af1416f3a70a67cbdd3ea96421f566b2e7396369d8ae3a407e9ce9ba5e0f3cd10851c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}