{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215386",
    "entityType": "User",
    "nonce": "0x4fbadc5f5243e0fa0961de5de4d7e2a2bb13a2ab115b0ead9c77314661c57b99",
    "signature": "0x17bc3a932d5eea885ed932af3e080d01a4231a57a01a4ea18603910dddbb16461f40d55bc56553280de0d0a3cdb6e2d72e4ce1cbc595eb5512c847c29a70cd191c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}