{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81194",
    "entityType": "User",
    "nonce": "0x2ed05886d1fbe479793c7747cad9fc6edff3abd8ff3a7dc57a92bb16e0200fe5",
    "signature": "0xf990e02844fccf3b1cefe0a3a0ef0777fb261b970b66bad80c20c432583aa2464277cff5c908d57ad476e58bae687620a60f72e83e691a9d65e334ec0bcd85aa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}