{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x39ab59155ae31bb91ae5271b6ec6fd061e56019a74df055a933c582d926fc990",
    "signature": "0xc0243304f43ff8f23f848de5755ff0524275cc85c13cd68da04079b5109da4671bdd4388b02616d832f5df1cc5e46d0b1aca6305697302c91d8a797f43c157cd1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}