{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96889239b844ad0d324aa559b4203929c18f6bb22c1e94adda7a26fce760749b",
    "signature": "0xdb6b92ef99d28951515f079307eee36a4445652964aaba0516ffd7378f6e81df3554d8398ff22002324fa4f3ecdc3af5557a9524ebfcbfb15ab43ccd86fb7d5f1b",
    "signer": "0x296F74dc3f08361c205B5172FEb1D3ecbeb5908B",
    "userId": "528574667"
  }
}