{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1689536",
    "entityType": "User",
    "nonce": "0x2a0ac0ee19788a94b44ec622a7ec4ee3ab40afbad76ca5841314a783123796bb",
    "signature": "0x3c054b47814698e4fcf081172388431120229cba3dacf37cfe3f9af457cf190f2ad29fad869972eef8c7698aa7c4e79894725f27a70d8c4a9e7bafc446eb48a61c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}