{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xa962d958ecc6ba64882b49c2fc88804c81ee97eab29ccb645f042555d91d2a8d",
    "signature": "0x4301351732812c52c4e4b6d04253d36d5b88618868fa831b68bc19c8ec995da4139d3de30b20487ed88554314562b921be788b493594b0e84c2069798c6f71f61c",
    "signer": "0x88B27943F74D36094296911Dd903a353d2149590",
    "userId": "410246880"
  }
}