{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8545457",
    "entityType": "User",
    "nonce": "0x19cfe96e6089e63461b670ecef562a35ed3f5821c5e88eefb0ed3a3eded7b2e4",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}