{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x1039d34a539de2fa1ad61f4356c0955f0432c75f848cdc0b2afa2af5355dcfbc",
    "signature": "0x77a8b280445acd4e67fc3cd7f0d3de8f63c38fa1966c7e0c151a8e420717532210c2d07d99f5970f05fa188734d1687959fd18f481ab2c7ed4eb766ae9a523bf1c",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}