{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1529595",
    "entityType": "User",
    "nonce": "0x2f2b419ab0a8817d5ccaa0d4ae2329e4384bd1c693d527ca3e5fb47ff2e6b9c4",
    "signature": "0x21debbc75148164b2b31d180b5901bc4d09316d53c481fa0728532be4887b28e023582354e4e654b1301869a4a9fbb6d31d932bad0d637fb935482eacbc6ff701b",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}