{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162376",
    "entityType": "User",
    "nonce": "0x16cba6d4b9aa349a405d4fac8e8e59b29ad03a87a9cbe8ff1cdb99fc7591e463",
    "signature": "0x8c4a222c90e1017098d9d17a6e1671af6286dc3f55dce4abef4c77be8dc52189378ae956e79360e9ae50351d68ca27e746846269ee3dc8a563e470b3a75fc2631b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}