{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844754103",
    "entityType": "User",
    "nonce": "0xea61a89599ae040ad2f5b089eb9c85e7d57cf54559dceb7d53306d86961a507a",
    "signature": "0x4119c59c6a25d4e310bd404e7890c0955b927eb58a7e3a8bcf84a5df2513902a4a734e98f395f56e276f61439e2182025b4e695e00648574574b73c32772b6921c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}