{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108860",
    "entityType": "User",
    "nonce": "0xf731651465e5f0a4ae377efea81ab585797e2be78d58a356742e0b54c59fcfad",
    "signature": "0x4ac5b57c2490c1b3c3fd349295c29a69e974ebd299856708098cb3f87a395ef8286135a071f4f0da1aeebbdf065a9b41514fc92b228a20315024d7ad16f4b0d41c",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}