{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x7f52b13cd5d043e4dc749920a377146e59a8aecc4265c9c4fae878e2faf09544",
    "signature": "0x089e89f7c0c3347ff292f2de472809eb1e0ed50400b2de05ab1081725b7caae53d7e4dfbae3181b4c41682b693e38a156bad74fdf110ca3ac558f5df02590c6d1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}