{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882402",
    "entityType": "User",
    "nonce": "0xb2d7a6358e1247597f8faa3e85837391fbcce08dcd38f2238d07ed92606c3b57",
    "signature": "0xd259f9e73cc029f50857cc20a881ba900aeab62b9c46fdf817b5f1bf672e50672d360c755c22ccab686e3227ce21b1387ee8ed30eb1f8ce85e3b2c4bbc30edb51c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}