{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5009",
    "entityType": "User",
    "nonce": "0xbda1bf25eb1fc717f61e51b4a21768062cd1bc26444c09f4e460ea90512866a1",
    "signature": "0xe7f7214f8f344b5c7635e98f6dbfe8c46d6b1a1e561ed151c19105421e34580a296b855a7dfc1196efec3b1b1d885974db3e4fc272e1fb08cbe9df8aeb2d627a1b",
    "signer": "0x9E7FDEEcc2f0Db11e56CD39d424690bc6CD308B6",
    "userId": "223270106"
  }
}