{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6b0a5b275f639b77e7b0b4211c530cf24c0d80c223c2bfbe0f037b34c45d3333",
    "signature": "0x4586b56e171cbd59a72d4b02c70c4531724243d74f43abe1399d493ec092bc64375227a5e7cb907ad3d0745e2c9c3dbb439619b88630b414ef108d223ee1935b1c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}