{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53951",
    "entityType": "User",
    "nonce": "0x9a1fc04daf9453f7959a102ee9f4f0bc4801c5d823b5ac1d2d99aeeac2d43666",
    "signature": "0x47d05b89b0fc0dfba6d738799d43266e2360174991ccce2694ebdc8a5988561f7f8932b969f6693625aeba8ea42f36e02e1999f9cc57ee4e619377f0066ee2bf1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}