{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8f04431ea9e2c9603795ce70871425c3da357a9bd18e1b885bed5abfa6e4b12",
    "signature": "0x8307ff63bcf90f7aca378eb151b634de452310f12feab27d457f363b8e3510e20d3d363ffb780c42b7347401bcec951f6202fa1a730ed6864503488c8ccb9eac1b",
    "signer": "0x0461d345159Fbd580cb80c204aCa3B37d1D30981",
    "userId": "131301404"
  }
}