{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15979",
    "entityType": "User",
    "nonce": "0xf005835537e81ffe022033391263171150c0f023f2ffc4bfa3556acfca8b9b63",
    "signature": "0xe5fb33bc352e3828e2c3b76a3e64bb4dc2828b04631891c60843cf18de5f1aa5657d3d76c94c93239bb922c02182e39d2696533cba10e2e765f86e82c02f1e061c",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}