{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xb69c57ea41cf496a9c2cabb6d613fc5c0c4999a80e7e791ca9a837542a79964d",
    "signature": "0x5342df4e7851d2bbe517106ed9b9367907b42cc57c17ff1532d87ba928d6c05a424d7901b671fbdfa0d1cc46dcb87ae02090a34d58bc6c9d04b276a18d48efc21b",
    "signer": "0xE22639FD840080b20889373FEa6060B4757eB9c1",
    "userId": "274627911"
  }
}