{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63445",
    "entityType": "User",
    "nonce": "0x3753ef1d8c23fff890b9983b7b4f5eae91b906f4ef469c155d128aeeb4f2bc14",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}