{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1886106",
    "entityType": "User",
    "nonce": "0x7f0a53c692b2ded11ac25e7a472db0e1696eba89142fa0827a8ae2b306332dc1",
    "signature": "0x1ee2ff4bd00bf1b2aabcb059c7e670eeda8dff3c5453bea89bf14214ee59972f788daffdd123dd7cbe5a81d16bfcbc23b39d9f4061af9517009dfb14bba464d41c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}