{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x74e870311de41af2648c2cb89f234902eea1ff03a31b0055fa3de2b60afb2e12",
    "signature": "0x49c5544d62747fd97fb5fc1a64b1639d337c9a0172a1a67b5f460dafae80686143303e53e754994b21ed825571274f87ba51fe419d202020bbeef4c5aee7c5e71c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}