{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "588471",
    "entityType": "User",
    "nonce": "0x1b6ffa9ff0861c0b2855dc4a7a606c14214763af0b0f5b5b30df8619f7175c43",
    "signature": "0x4a12d10c8106b7abcf6a9796bcc5fe0d132e3fe5a2d7acee4451d1963bba11a976c3d6c5b7d6182e5cd32f1d3022295316b07b6ebfab10c08481b0a4e6f715531c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}