{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63168",
    "entityType": "User",
    "nonce": "0x53b8e4628fbd68e7c7688a7bf7db9b4ce9cfc78a0bc615e0fff5f6d593d81e37",
    "signature": "0x3ca126a6365591b1ebac7fd816ac5e29ab2920981f7dd866fa3c3a44957b6db65432d7f00486eae6995ae541974bf8f34e1f2ca5972d08704445c0e51ef967251b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}