{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159794015",
    "entityType": "User",
    "nonce": "0x8a9c7ad50196a33ffc49bb3307c7e1ae47cd65837b1bfcbd600ade04c1b9205a",
    "signature": "0x32b729156054ef2b695dd6408d77f4b83c0846be5cbca6fc3542861c23ce26031739edcdfdadf457146b9a271b09d84f024c8679dde3adcbfb8ac944de3659281b",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}