{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617992566",
    "entityType": "User",
    "nonce": "0xb687765d7b709d7dc986598c50b32e405e5bc40f8ebfce8cc82abe8ca5b804fe",
    "signature": "0x69c8ca7b11e06261dfc3fb1478f5cc56f81359e7ff003ac23f6d2dd95692e99a7402405911d12bec9bbf7858d9b12096dd4757238cf637832c90af1e9c1450441b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}