{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x031036cb44f387ceaf3df36aa6869c8f4b40498efeff5f51527fbc1e6e798cd1",
    "signature": "0x4e38fe8b073d2171bb5994bb6709a261da40f7fd9a744c307332b31c4cc513b834c0eb083bf538ddf9b0ee9adddf7481a78e23a02f9cd08bbe04af9c0d11816b1b",
    "signer": "0x7Dc5480547abF67B7926d1c24AaB5d7BE7e0c965",
    "userId": "727950503"
  }
}