{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2631",
    "entityType": "User",
    "nonce": "0x5a3145c52f7062b04cba11db490d3bfa2bbda2b0fc3631082255f7044b67d408",
    "signature": "0x2e360b533a1fb4cf114ba317303a54ac5d58f9c74cf2c18a4bc371ec25ad654052f2598f12e11b9a49327102d532f9e38542e3557e8688e02dd2d126c71b2f7c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}