{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5b1a57ebb348094f096dddd45ec07f798c8cda974abe7cd5fd675d47d57b44a6",
    "signature": "0xea58bdc565834e2f3b1c675a55f6d5dde71ae6fe58076bcd06446a59b02bcc6158380258fd88d8aef55b4390d808ea6e77bb780c08a9d6f4f62d7da0756032a71b",
    "signer": "0x2298E32DA0e7c080878c6C1eAB02B255510f0Db9",
    "userId": "570472437"
  }
}