{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79915f68e765b993ad3bed63c1bf882efd71c169019ed5db2159b652130690c9",
    "signature": "0x24ac3f710c22c23bc6dc55acb69ccce7ca983d6e7eb46c82f04167a8440e38571043c8139ab40722015bac13cfa7a66fa9c177a6e618599e6464ae28e0d004701b",
    "signer": "0x8C1530A41d2607fB011bb2889C3b09E898dDfF1D",
    "userId": "345290812"
  }
}