{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "744937248",
    "entityType": "User",
    "nonce": "0xea11f69d33c380f408e080c568ef9b3d880581b676b459ad4cc83b8b6a0d53c0",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}