{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243955",
    "entityType": "User",
    "nonce": "0x9384d4bc71aa6cebb662f767492e832dd763659e8d8be6b078e702cf25a7da37",
    "signature": "0xe2264957223e20db48d3c1838c7c229030b3e236ee3027a04678fd9f533aae542af74488e2baed7a205fe55514bb2f032745048cbce7d563192ea32bf5bf1dc71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}