{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x541e73a12e29f641b278873abbe6299f8709729c00336fc5c670932b10704756",
    "signature": "0xa8a6c964b99e57079d1c85014cfb0300171a3f8592ab42a357c5559451327b5f7c2df39b1e8eed569a90a25e416143133f8122f19b581297b0fc21cf7f2092c21c",
    "signer": "0x61bE866f38E5032e09Ac8C43770B54C5FB56Dd6E",
    "userId": "798710966"
  }
}