{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68204",
    "entityType": "User",
    "nonce": "0xbc8048f5b81670852632cb198ec8761fa68304fd2d781b6e00c1995bf2470916",
    "signature": "0x9abfa85d4b7a28b4854929dd4562483138f2de9197ab13f1f4c878c691dc0e4450735b6da9fe97c2d7ff95da8c246818033b34a75fe2fd38fe51295aa62d47421c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}