{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111374",
    "entityType": "User",
    "nonce": "0xfb9810340e6873b6a13446cf83bf60f399273975381a9657432aac5bbd64a333",
    "signature": "0x023aeef2d9606ba429c3b5e09b5db400a0ac21918d5686a2e6b804f9fc3dc1d322601f2233213182f734852270421ecb3785b5dd4c84eb6eb1564567a22d05ed1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}