{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbd3c2f75ad692f174cc35f84672feeacdd4288b49b627e27a945af77a36471cc",
    "signature": "0x20cc677f42de2a538c06042a43b221f7127df0a365d341ce197bf43c0fb62157725a0d4a5903976b62082fd76ac6462a176c70ccd6e0f9932bb06fabb33743ba1c",
    "signer": "0xD633F07d3a7C6c5300B7ADAe4804216E93a3d3dC",
    "userId": "332322001"
  }
}