{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "365743",
    "entityType": "User",
    "nonce": "0xf9e3088985fbc3c81f7919922caaef66fe36907cd6e1d514ea9652c494c551f5",
    "signature": "0x472b71f62a51464b64f85e5ee9c23b4685556b8e7b2cdc205742165ef3ac325911eb05d1e87353d33320fe3bd86c3eeceabb6037e1d5482c7c80a10cd2cf85d81c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}