{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776994971",
    "entityType": "User",
    "nonce": "0xb4c50f2aac4196ecd218c893f6d9ef87eaa67421b47ddaae1163a9f2bf23eb74",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}