{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9ad46cb5a237d74c59355fed51b96786d7320650bd0432174deee1c6b112e920",
    "signature": "0x6edc522f5c43747ea6f85db8f2ed59ec1629edd7decfd072db810972251ac8d47b325b8ca8de578c118b1b40d8dc233805d898da6f53a03f4fc2291ac15b57ea1c",
    "signer": "0x00701300FDB94D63AE727Bc13d0e6C6AEbB6a494",
    "userId": "950805053"
  }
}