{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125066",
    "entityType": "User",
    "nonce": "0xb8e35fa2fa97ec06c8862e0c061ea523c4e478a039195c03da09bcc6a40d97c3",
    "signature": "0xf38bd9adc5f0a35ec37f237f973b42a063bfc5c3db9a407925d7193da3ef9ec91dae00f5d7ee20d391bef5c6cfd3665bdce736145312559e3f4527d416d623941b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}