{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571450",
    "entityType": "User",
    "nonce": "0x61a65ae4276ecba45d76b3af14a0cd3d0696f6e2ef3e9502f5a293ab876a61c1",
    "signature": "0x9b5a64840d0b1d4891d1182fbe26318023e82db225ccbfef8bb21aa5f99030751d263f479e0e9aa81e3b23aa7fcd77cb9a6de1ad5ee1d00ca30863ec5acc24701c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}