{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x822505c40d94f61bc91ce22e1396048c250c570aa5dcd62ad424aede81fb43fd",
    "signature": "0x262437206cdff5edc9aa6adf199d34f27b530a6794bb33f12467a84bc15aed6338d616c4d6be3b5a294fd229520eec6277b205af61c3a78337ab74b040307b621b",
    "signer": "0x1C65823c662e6d912ae948e3971B727550397651",
    "userId": "312556877"
  }
}