{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847673429",
    "entityType": "User",
    "nonce": "0x0e9834c0b690f109aa6647608c4f01a212ce0073bd665bcc961fa5791d92fb03",
    "signature": "0x243d0bb128d3ea9ec08d8f355d8712584a5bb8b16f2aca807e2b1f3f59f3036b0857fdd6e787d0f3b96096e2f4721e78e9b56fcde0b07beaf4a8df17b4bde1e51c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}