{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "567283",
    "entityType": "User",
    "nonce": "0x4eab9ed14bb7666eecd8a66cafdef4ddab56cc5664fca0d20279199129934d26",
    "signature": "0xe3e0e93d65ff9774036e0cdbd4295bd5432dede2104edbaa61f07509ad8435b22315181a16154db8e6e57e3f3ed253197094dea503c693f927e34bbccbcd645a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}