{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9780",
    "entityType": "User",
    "nonce": "0xc49717c82e091944f5b51b705b9b2746655f893562910c7def029098c6fd6856",
    "signature": "0x93ab882df842026b3d403bc25d98d1e1a48a19371e8f2c615f97f8dd8a00509e223fea6265234dd7e15082a6708b744acffaed658f2e064889d91dce30d90b3c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}