{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332442",
    "entityType": "User",
    "nonce": "0xbac0df195bca8ee5d5bfb4f4891ff010e538735ca75121bdd123a3da735e0352",
    "signature": "0x341ab2046dcf3d474549ef70a69b0a563f5015ad5c379b02e5db509a7cc0fa316fb1464a4b229f2176592be9bf6d8e736e43d850fab61af5d897a4d956fc7f3f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}