{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187028645",
    "entityType": "User",
    "nonce": "0x4c9a9a0a053843e3993be9dfdcfcbef4109f0afd1646b9fc1a2d8423df3534aa",
    "signature": "0x46743782894353092456bce8efd685a3a108ffdd8a0f7f476fe518680a7ff69c20d69ae396fc41ba4a7579bf7748b29dd45effb6b5f42f3d23c23567a4e3cd801b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}