{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe441f9a1d872eebc5858c0160fdd89f7192c6eefa2aa6eb79f2cf608c6d92fd6",
    "signature": "0x212afe90d5a519d17fedb3f6b9a860a2ed570478d244369a32c32b4a6d361ed62230fe53057ef3057ba87c2096dae3616b817fb4e31ca374542b92b5c92491c21b",
    "signer": "0x44bf7d0C940254c569e1f698bb6B86F3e65016e1",
    "userId": "34068463"
  }
}