{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4970",
    "entityType": "User",
    "nonce": "0xaab00397a2ad8996c4f93be495d882857e400e15474b7b72964ff9c94307123c",
    "signature": "0xa07f4aaf585782080cbd42f2c600a297ca37ec57d75cbb39cc91c6f2b9ef5b895bf411817a3bc6d69194927084fa48527c0809ebcab8da797a39be1b17183f8e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}