{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "251854",
    "entityType": "User",
    "nonce": "0xa321e091fe6e87518de48841d3973a126ffaf584b3a37d142c82892174649e51",
    "signature": "0xc081c1684567cf02758a9698d9c0b147d298a8c5f46399da468265db7598129c330bd4575307b655d013ce312a87ad71d2d225dbe2ce37d34447953769dbd70d1b",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}