{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316190259",
    "entityType": "User",
    "nonce": "0xa2f27c0c7149ab7a89d52fd9ea42c653f16ebb54a04c0fe70b8ce4e003150e1b",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}