{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x52579aa1042aac81dbe6f2a2dcd5c007e078a47e9da883d6733086c89b039ddb",
    "signature": "0x1e21f148ae1ab95750535dafa844cfa2549f772f85da51713f71ef689663499052526b9bb7a7d3b43572aab5570dcd71f9aef3bd61d064f142275c3d9eae6b371c",
    "signer": "0xD21192e92319319249f3df55efE06b0809861c8f",
    "userId": "924892254"
  }
}