{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16782",
    "entityType": "User",
    "nonce": "0x870a23a9d40a750517b8f7b3f18fcae74d78b4c943822aae88cfc14daa9353f2",
    "signature": "0x76922c4b334df2ddcc32d6f04c8248090890dd9006c9c6a4093bf803df5000b736baf1034cf17a97b6f92bb18cdce9a1649f127b73894b981571fa3cd5a85ff51b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}