{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae8f6ec4c4fb98f9e435e16d4a6f3f0465ed2a17f895f4c6f7d0f5350ddab826",
    "signature": "0xd6ee9ccd3defa0e4d355af0819252b439d69192b4d7c2faa3b26595e4b0db7b42fe09bf2299e37cae5add87db9dbf4d3cdadf3995dffcf2a9d0f30464e0fae1a1b",
    "signer": "0x862060c02F28f6984692E1Ab0f15419eFdc91D0A",
    "userId": "321032997"
  }
}