{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1244976",
    "entityType": "User",
    "nonce": "0xaec24674b89af4377a4e7d16cd3ab2fc0f493a50009cd4300abddab3259f8488",
    "signature": "0x90a696eb3e5216e7c2160187fc5197d24ae0c0bdaddfca65974da0fb2a05de1466e4de9e5dc4252c1d6ad9e5e2c9f1df4f5cf88bfb4f998db21b6e372a68f4101c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}