{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb065193e1c9bdcf9ac83b919efdf751614e501ae021111b4b0dcdf1c0c421d04",
    "signature": "0x2c6b6527236036df242d8d43739c08a7539d4b8c5afec4e37766d71ba36a15225d1357a2346dbb440af128dfd640dfdbbd3980d160ebca7f7e2c0370232931f11b",
    "signer": "0x225A0F26D8c354e4B16725295bDabb4983d0F6F1",
    "userId": "994175139"
  }
}