{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x3ada33b61b618c2e74450f8243ae107318374f2a366ac85106affdb3ddd2b1dc",
    "signature": "0x95349c314d496b1d9972996f33f5e1ac5a20747fb03ca9d7224e631189a46ae66ef4b6695b439183d406010dacc7cb0827722ce9a4286161a1b9391841ce893a1b",
    "signer": "0x887ff90b6e9a2F5c6Cf1E862028545C66FC95d72",
    "userId": "141224956"
  }
}