{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0x566accd564301a1cc85ad3b22737b36fcb194eed90afbf43e20711d7d8428f8f",
    "signature": "0x3bdd3a2e640214b09c7fbc1956a54d85ddc5d22a2752064b58150ae5716e36674d4de2c515787cd6528b5ed181908111aec8e14f5654fa6da4abaea899207bd61c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}