{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617775",
    "entityType": "User",
    "nonce": "0x7da09aff15f00817f4164ea3283dbaaa68239fefee3c7838e1d70b991659d280",
    "signature": "0xaf4cde504eb1da8c182b794f9aa0b0dddd448816226a2c0d1a347d518f9065030774b60d1566bdbefd903a7873d096dbaafbe852ea57455a2ede8e059be1d62c1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}