{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x8b48bc9e18c4ec6b6afa09f78c60906d71694e288cc918f13468433176e00a90",
    "signature": "0x03bc3e8ed6a0d3717c7a892f9ae0bc7d4ca2542cfd6dea44c6c4fd50798c4f9623b7789228c9f4ae425159cc1f00df17b6bced9e3d72d0814bf3dafd286ec9b31c",
    "signer": "0x623F4Ef45156b3E09BcfDAA0D7AD20726C314919",
    "userId": "372587631"
  }
}