{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x229277f97282e8e56fddff20bc747ca4f4674d065023a7a62006fb1a65753b0b",
    "signature": "0x5dbd49d0f64dd472fe72cb2cbc0309d2bdb800288713a7c807895144ba4f19b20efd6756aa6b455c77bf72e5246bb98a01ea3005a76fc68ef796c5c27f5e903d1b",
    "signer": "0x816FDF40B09F26CA3B886dAD63d3a11775Aad010",
    "userId": "59254938"
  }
}