{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbaefe21e845136f1358fdd734cb1a019c2bd5e19c79ce7dbf151aa0cee84f733",
    "signature": "0xcd0cc386da2f151198c4f5b4ed2e37b246737f74aec9a67cf91c1c14d0442dd67a9a9a3684aed3b88c31d368c43487ab272c8a8e98f12ab5571c251283e652661c",
    "signer": "0xE6D44164f0e5F64c992BFa96564DC07Dac8858D7",
    "userId": "306894466"
  }
}