{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0xc320d5108eee6582efb0034a384fa745c004454e77dcefc5be44f7be1f2c954c",
    "signature": "0xe103538f8bb9add1f2670b1bd610872af09c0b1034def15d4b64125ce94e116c722b0e2aad2a93025ec3e738aa10972a03e64e201cdd7b6f282ed151092fbf8b1b",
    "signer": "0x6746c13B1a3E2e4560a4371410C3C69854F63E87",
    "userId": "42279084"
  }
}