{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1697423",
    "entityType": "User",
    "nonce": "0xfe680d9e12bbda0c0266e1f4ca99e0209475ce5ca65d7ab4756ac2e6c5b3d06f",
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    "signer": "0x3776E1D82Ebf03656FA9D03C18fd5B58D7Ddd337",
    "userId": "83331354"
  }
}