{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111234",
    "entityType": "User",
    "nonce": "0xd6e48a0255d5bd5c8256cb18a42d70dadaefc3c5d5434cc4cd19db217cb0fece",
    "signature": "0xb0711005809ffaf1b688a2746568e062583b4c432c44e38c9bbfbbc5b5cd808f21a8bb743dd40d5e0034a2a26f8741901a94f4ea58d076b16994eda6ffdf929e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}