{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275001",
    "entityType": "User",
    "nonce": "0x50e1fc0acad9da7c4a6e3525426716a0d34344c160cb6145a5c2d3893ea744c8",
    "signature": "0x467ca21ed2f724bdf20b4eac36299311878884f198557807a98dc55234631c3b41baa0a1d86648b294e6b81e0f1c9b1f190c6e3edbbcaf7ae9fbda6a4f9087971b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}