{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332",
    "entityType": "User",
    "nonce": "0x1532a70d9f3d449b5449f8c0a0995844ab14fc67edad003155b42253faeb55d3",
    "signature": "0xcae6e0faf01b35bd8a76075b6ece179ff1253034f9c97f8dcbf4cdcccdeb70501a24f474be422a6cde78fa70215f4006e1b2a4320459c41de2c25464ba47412f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}