{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305916",
    "entityType": "User",
    "nonce": "0x59dac339a459b52b974d27d5e92b273b38ddecd90023117f873b0756d99b2cdc",
    "signature": "0xa837873648decf40fc601fb26b033c91a4457f8ff5ed0ba7f6bf74d019b2494a4abfae37ccf46c45c9c81abee93de25e69d7f54fb5d693ad01cebceb7e077dc41c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}