{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd67a3dc3e685690e49341af98463b6257607c134ac8853bb318ef1b85c81fedc",
    "signature": "0x7f40e42f9bbc527714174d65b5f2b6135ae482b6545ad4367d142abfda51811744e216849c1bfde6920677ef104ec3cb1f6231c76b855726706e291cacea59441b",
    "signer": "0x5EAFc2E276143c90B0355198D7fe50c090097865",
    "userId": "383296008"
  }
}