{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0x3353263f3d88051bc074cf146e18b5dd01dd9ddc857e585acb98626398c0f411",
    "signature": "0xe5d3ce22806cfda31a3db00b4dfdbadeb1c7146f17ae814dc93ac5f98a3c0ffb4d6b553e2c39d0a3053744984b5ffb3d4278ee5b98349b6e4f4cea1cced23f431c",
    "signer": "0xB755CddA6da08Cbad290b9528CD0dC860f9f7dd5",
    "userId": "536791428"
  }
}