{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49421",
    "entityType": "User",
    "nonce": "0xb6e18029271b0c91235c8467b5218e40e441ebafc373004df71a6837a53c1dd1",
    "signature": "0xa8a8a6f3d9e9da3af7ef7ab1cd0e9866086592dfe8c469fc67881f20b34d82ea27310a865349c2c1928d864e8311bf1a30d7751b3e384b2f7836f0f83bcfd7681b",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}