{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xf9616f220501b228d8be6f3cb69d8e9a29df61ebe24e9902d78cd9794914fe1d",
    "signature": "0xa9441635223b88f6f6e5a95b2bfe13c8fc370857fd5ef0defd1670b1b864c8b27589752e7a8210c63acbe2939774b8c1ff9369d9efd4893efa4376dec95ff8931c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}