{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227645",
    "entityType": "User",
    "nonce": "0x5c8f010caac4e663cf879bc5eb78d406630312e3849b507cea4f5bd217dd23cb",
    "signature": "0xc0c73fdea84137586070a1394a564fbefdf13d9d55fdaa0974ffd7defb7ae75d703d213716f4b2eccb924e58f0ab41b06d3540cb7bbf0c55b368ec4874057bfe1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}