{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327722",
    "entityType": "User",
    "nonce": "0x37c4aaa12b2cac1f14731b541555dca1b5782f1d988cd1acfd14e99b321ea7f6",
    "signature": "0x548d9996f77b698c34fc8e5d2ba929656f141fba16eec7c9b49d8a6910972bf41fd1a53f26f94883784830dc2d0425061d2d2773c209cb14ac21f45d7ce7543f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}