{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68907",
    "entityType": "User",
    "nonce": "0xec2a0404cf9532d8aca170e40dd41b5cd8c14c163dfaa0406fb017767743a78b",
    "signature": "0x489af6891b5e888b9f9b022dfefb28202ba6d4a660c0ad2449099b91562537b42e78490e72a382760172d388df0e8222ff5080ec7a04f3d303513c546be991b51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}