{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128508",
    "entityType": "User",
    "nonce": "0x024e670bdc690b00ae6f3dd357cffde4988aeed3521ea96be37d78f9d6756346",
    "signature": "0xf4a64fab8790ff23b2910c6af7bf5b288298cb459b902df22c9f7d16c63b0ea8541ffbebde232ef5e33eb19e4607aeba98722ed669f25fd054bbe739f538299b1b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}