{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372652",
    "entityType": "User",
    "nonce": "0x9f1a5ada21843674c04014f78164b9d36c6b46ed212fd8a90ab3ec53f43cafd4",
    "signature": "0x54769735d936f345b322e2459108a69c9bc37eb0db0f4152daeb9b8b783475c2658c847cd444be23b6f0ce772ad1cd4388daa245dee2ff122b32f51afd5453a91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}