{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x2349965e58f86858317f547c5bf71ac7c2d913e91b73301fd9a0d51970371f03",
    "signature": "0xbf5f7dbc4c11843e392d3b547d4e1bcb0ba5a5e38b3a534ef4c4afc93b7470e911da921516e75b059bac0e5b6965961b8803653c669d296efc8d7e292660fe091c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}