{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62664",
    "entityType": "User",
    "nonce": "0xefda4c67c85c31e65b0d1bf0747219b96c7ac1c5efb73c3792614c64431a4029",
    "signature": "0x471ba10eca210d640f67e8264de30f353c99ef81764e00cbbfba8cbd15a38afa412e6850c8089e6fd0a3afc3bbfae2bfadfe59deb350195a16ac6f7d44ca1fe91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}