{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138229",
    "entityType": "User",
    "nonce": "0x523eb1869e0fe3bfdf0e5d47fe5ff8cd75ae2e276366c9912e88d1fa7a9234c7",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}