{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218057",
    "entityType": "User",
    "nonce": "0x16b6dc2e1e941c421d984d34ea408c6d37233826199534414447065242819b29",
    "signature": "0x7f8ccc1cf3977dd7f04a9c7315ee92aafca58193b50fac46961d0b06c22a52a57ba4b0006c8e5b7b98ccc673fae2c87f1946caa60e0cadf8f68a1f505e2b4ed11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}