{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273529333",
    "entityType": "User",
    "nonce": "0x5eade3bd4f1547f6d82b3f37d120109c01134be34f4976fa17a9ea5e7d5ee0ac",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}