{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234524",
    "entityType": "User",
    "nonce": "0xf3965f3918a88d0ccfeb2569d1589f8d36c8d0fe8e4fe0918ecab9d6e00c73a0",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}