{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277",
    "entityType": "User",
    "nonce": "0xfec1e3e26d71105c1ec6877ed8f08d83605f6e1f13e0518661a828e3c3bcd050",
    "signature": "0x3157750cfb161bbca4a1935ccc90f6d512f72f1e5c7a9da25a47519b053e09247567e116733844a68598a5b72fc51802dac52cd5291396fefcd9a91af287fcec1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}