{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350967",
    "entityType": "User",
    "nonce": "0xd000a83d2f9dfcf90a3985937e0374509f8e266e1ddc101de804a821c2a3074a",
    "signature": "0x52a392f4ee5cb5aebd7ab98c87c2a3074820dca0a65b66f711276d2a7b8ac5574f009ffac0fd913cc611f4aa200fe0e5d23b933dcec792edc167aa349e3239221b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}