{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "754276083",
    "entityType": "User",
    "nonce": "0x831cdcb9b56938056c00c82ae321cd77d225a4135fc8f285b21ece851823a142",
    "signature": "0x918f4abf1aa2224bfc22d8243174de007436c2a6992c25b1577aab54105002a340570ed16484d473b48607c0181b5d400be65981f50d11c784e17c0cbfb760d11b",
    "signer": "0x24793c3F7b852485A6D9AE5404EB7f8a0D254908",
    "userId": "283469156"
  }
}