{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5307724",
    "entityType": "User",
    "nonce": "0xb69392b8f303470b7a10aef48c1f291184c878c4227e2bf8f8d6f9ed180afad3",
    "signature": "0x95dbacbf792d735a3045f7bfb267e5db053f6756ff35300ce10f6290357f6fd0330c256f99c647d860283af028a0bf11d29c1e16b368ba0d2a428e5b3ca3d8cb1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}