{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138483",
    "entityType": "User",
    "nonce": "0xf637f5dd0c699903d93eff27432f9d6cc0bfc9844822176cc8335cb159f9d339",
    "signature": "0x0c0f8ea62179fdcb3857552f4cb0f585caab8b9ff4502604336a58372b6fe15e4a8fbc8ea9ead4d5fd3db4612e7edcf7b279f7ba299303210343aba76bcb05a81b",
    "signer": "0x5EbCE600b54E0129997395991AC72BE65BB674AA",
    "userId": "843653281"
  }
}