{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153928",
    "entityType": "User",
    "nonce": "0xc440670f89a72d7c6c645c7e5efb0fd2c78804ae6dc7dd6429a9e6b5226aa768",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}