{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87754",
    "entityType": "User",
    "nonce": "0x23107dcfa7870ef33b707411f5b2c08ff8046f5aebfe0a25e67b2b54c696b309",
    "signature": "0xd061dd50db105e336ff6da1d3e98d7c824b15278cb0aa5ecd14638945b70c76f51a54d48a00f38632d2da0f79fcd503859ee1d5c145ccbed48bc5766ef1485fa1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}