{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131869",
    "entityType": "User",
    "nonce": "0xa60ecce6cc12b4eefae224f512b7a2fba9d7ffe32739ebf2a3cfe33a9f32c0fb",
    "signature": "0x9362c6a942e15efed9b919ac834aabb7b3943ec9aad8de15a759aea5c49455061891357ef289b5fd0a1126138c2a453d2f91927a2af2eae64e7b8238f222c4fd1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}