{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707265359",
    "entityType": "User",
    "nonce": "0x589809869b509fc9192b8dac114d9f35e5199b1e60b2c2f1009a63b843545a30",
    "signature": "0xefbe5d8648c3ff197e6e02b97f59f185db19764dfe15947b0a33583314aeac4315b64b8bcfbeeb8ea9dee8d32d4fa6d7838154a4b906a233fdf8637e29b3b5cc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}