{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2142",
    "entityType": "User",
    "nonce": "0x24f6449f8959fcfff07c21e6d8830c349b6fae8bd35b3af9189077c0cbb2c4df",
    "signature": "0xc4af0233178da409389770e28824a560895389a4f9f6d2596d726b9dad64162661d6aef371390f3013627e9f99f3a203e6d16cb8755301cfc045659c23e698641c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}