{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322880",
    "entityType": "User",
    "nonce": "0x7a0be054e657069b7ba8bbae9326f3182f14a509eb6f0fb3f9fc5cc64dc92ba6",
    "signature": "0x22d506385542417a6a521bcd15f5a7f78e5abdfc7ba97b762af4320a7a24ea7e057ff39d10bbd1e40790e78a1ff72844a0fd35b1f828e00a99aef547276cd6e81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}