{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8cc7a26395d8b5251de6083cbd6a9681b4f9c5f185916705199da00acb49ad53",
    "signature": "0xda7c8aa0231a74fd7a38c08e9e4d725aa8780e09f463441fadaaaed0e117aa8956e19f9827d066f02bc7b402a647f304b5584b689516efac6d42f3d7d911aca11c",
    "signer": "0x7AE1969E64dDC6321cE585860EdE6dfF3807515e",
    "userId": "649033435"
  }
}