{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77c66e24e3fba140383030e427788efab422b7b3843f8aac88f87d62c03f0b1b",
    "signature": "0xd3f1b6271a0ab884b0d7dc723a015177e875699702a936410ffd2021bc42d8150b966ae0bdba2136fae72d82a377201f366686c5ac1338e834b31df13f40386d1b",
    "signer": "0x21f0931c2ebDc9838e5C959844B3a7bFDf69433a",
    "userId": "760115133"
  }
}