{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "79876745",
    "entityType": "User",
    "nonce": "0x7f9130bc301fd2be4872b915d8364fb4f6d577c7a6ad9b41f8991dcb7989d59e",
    "signature": "0x1d400e2db41dbfc3d606b12b94671a5d86518e9bf8e855ac1d783e3214d352533a1a504f8ce819b83bfadc8e5484f547af22a6dd0608654b2192029af826b5d81c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}