{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x5282003c57feda970d39b640fc5d4c421d85f0bf97271338625e5465f8a71c8c",
    "signature": "0x95ff5d713fb64e2e77af7848ebfab3b3acf9ffed05b13910ed51bb033a221a1765c09175438fc399120b235047b8476cfb5227753a106c3c22f281110425e8431b",
    "signer": "0xD01FdaE4187FDF77d51bEf323Cba4af67b772560",
    "userId": "93448"
  }
}