{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1345",
    "entityType": "User",
    "nonce": "0xe01bf346d4b282b412f08222c0f876467932b4639493e72cb917faa70f379463",
    "signature": "0x91029f61cdf3f10fca43471e44bcfd473936abf982402d52b98452e7762fad503c0793e7ee8ffc7ab0364316f2685a549cf21523f47c88cd5953fdfb49dcd5071b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}