{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464100900",
    "entityType": "User",
    "nonce": "0x8ed797f3eef88bdb7e5eadc1fa8737469beb1a86b67681a318e506066498158c",
    "signature": "0xd3da042da74aa13c06eea5d594f9fe81a08deeebef1e8393061869be02cd5bfa1f52f6d854b32bb5d6a9e3f677a191656bb1c4d24880b920c4f153dc7093d08d1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}