{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1640466",
    "entityType": "User",
    "nonce": "0xb9a4b006c6e09f76e130e8541e1219787a369e301bb15eaca1b3555bea89a879",
    "signature": "0x9b8f2c8dd2aafd7e00a3c9fc00013cd3d8474539cf16ea6a22d1de56d14dc4b03d7708d9b9d8c62cf42ee749c6d859430cff470719cd944b5e6411316fced6de1c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}