{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0xf0ec1f730b9d91d78690f3feb615213832f91df1ce8893349db46d3f6d7c033e",
    "signature": "0xa85b9c6f47a04a145e15c9da35b51d1e47dadf05a8192cdde7e49de536fc7e585cd4f347150b6a1c9c4dc3161677287843055e679d9d2e27e3a95eecf31a3d091b",
    "signer": "0x40f9c8F93a5aDBc620CB9B7707fAbcbA2fDFaBbA",
    "userId": "765901034"
  }
}