{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0x5914ef439a0cfccbbc542a62e6aa2cd36fa6a679bf6a736d550a39cdb75a0fea",
    "signature": "0x82e122a7a72e3b4d005c35fb881442d96a016a77314af4ccd876314093b592b85849e5ae453efe37980fb81562b185fa00fbd46a8a3ba7ce496011feda5239ce1c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}