{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270209897",
    "entityType": "User",
    "nonce": "0x50ab02eff9a36ba4cee6bcff1b7467bdc8b525c750c7758b6fb50ae9f117648a",
    "signature": "0x90a7e6536c38fa3dadcabd3d8445db50d5aa2afb228caf432f268bfb671e43491b7333923e3a82f828c0b57d99b1cd76b79c7065a8955b3ddb8184dd10cc4ece1b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}