{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40216",
    "entityType": "User",
    "nonce": "0x21b9317982a59273edd47e18e464da93dae0a6db7cf6be6c7b4e04239fc1ba27",
    "signature": "0xd7dbdcf285d0334771990a45b99124c10320b37bdea76c48d9f83d0abd4795281a195ef40769257335db8aa49d2866d15779000341a50947becf77877879dff71c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}