{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288787",
    "entityType": "User",
    "nonce": "0xbfd5d9b730665e6f3653a45d0e5ef22c6965d366c465f3b151d7461f2a08e261",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}