{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xe0f85bbb9ca7f2678f76b3973bf18da3d4c46144f99f5212b75915a168d8f138",
    "signature": "0x45ca4c96fd1c33d53954a06649f20134f6d0fc419f85d297b56020988f1f88a131786204b7ed20d1150ae318e0d092cd501dc852230037ea754f5410ae61cbec1b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}