{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945139768",
    "entityType": "User",
    "nonce": "0x254f81c4612b83e2bf04132274d667a6c7c28df07e1bf8a9d78b7a1249dd76e2",
    "signature": "0xcfdfcc059208f0cc13f3be5e795fd96c6d8876c6a81204f1256ec6df306b93725690b11e0d27c7253eb853404587b292d082a3062f37b4bf92307a5d4ff540fd1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}