{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223946715",
    "entityType": "User",
    "nonce": "0x8cc2988fbc1468e71c5474fa6f2644b92bf5828f9ac08ff86ac4ff44ca11c748",
    "signature": "0x1388c704b7f6f0119c74bbf7a47e6905afe4e004d2b44e2b9bbdd38144f187a471fa90ab916e5369cc5b27f121609f5cbbd9482836ab371a926b4d7887c56fb21b",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}