{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940003920",
    "entityType": "User",
    "nonce": "0xb53b867d7f8ec0995a6cbb3f048098b7d0170c34f2319410715bb7d7f6ea31ae",
    "signature": "0xc670d293e821c2802702eb19b2af400f83f4a23f3fbef81f0a6865de4f6886560bea1bc9bd230f9e35461bcd56f7a12757054eb2aafc784efc1f7a8164264e5d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}