{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x42ac3f2163ae01b40ca4abe1da3e23cb9e70a7b260e5fe69a775787557ac842f",
    "signature": "0xd621549251193367964f5b12a33194b2099a1f09526448f72b5c13bf09be8c18693fb89dc184ebb7b9b8c834d5b6059bea4052851f72623bd2134948d6e765c61b",
    "signer": "0x6B9519cF48DB3f140784848EF3Bd17E4CAfA71C6",
    "userId": "868140613"
  }
}