{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x50b81a6fba301e428728e5f3682cc3e3040d3028f44c5e9fc05b255b6d3d1ba2",
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    "signer": "0xA3053db28C40cCc44819EeA0B6c521f003c1dCB9",
    "userId": "347934430"
  }
}