{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x0cc483ad8700d53356e7fad6fbcedf39ad2d33b8c3d54a505db3188a4c145902",
    "signature": "0x5c6a9bb546783aac6fb35035494010f2b6ee141cecebffd20eef4cbd05dd3412533f56f55edbab92c39eeedbcce4e6f3e4e8f385e203a3dfe3a03313069f580c1c",
    "signer": "0x003a982e30b608cCb17EF95957349303d5CA45b8",
    "userId": "847390033"
  }
}