{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x051cd186f1e42bd160e88b5e628785c5183f03cf957b010cb882d1aec1a7f9c2",
    "signature": "0xde1cd8b7a92401d1de87960b12de7bfabe3a36959210de17200e2b3cb881739318493db790f67de441df37f588bd637327a7a70abcc207c0ddaafe79b9b9e3411c",
    "signer": "0x113593f987a99eD745288b3fed7A719d5cC3c1bF",
    "userId": "29989384"
  }
}