{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccccf932b8fd6e49cc791f105d23d67f222767c1a3bc16584ae377632c818c75",
    "signature": "0x6e95ea7c6c4e23a550030de930c5480aae5700cca1305699c752ed22c1440c0b2986dd79b1d956953e9fe0ebd47c81b7feaeb8531c27c18b002b60e9199b0eb91c",
    "signer": "0xB344e1B51A2009F222435Dd5362d9Ec7f9AaFc40",
    "userId": "34310519"
  }
}