{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0x99b032bd70c368882f8f55859c644495eb4092c50e0b3a2e414054e0a7b23253",
    "signature": "0xbda40a6a058bb36387d17261b5cbffee08ed064042b4dcd518deffcb390a34b1451356442e42c13d478e055ae2466d72a476c3cc6e2c3eebb2e7c2a2a1d7e1491c",
    "signer": "0x3d3C9a78785e201CD119b8f74d7d88D131bB3cb9",
    "userId": "350266629"
  }
}