{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101990",
    "entityType": "User",
    "nonce": "0xfef2177f676e42c29b72d79bf5542700eecd923eb4b49d65b8f2a1ffc396f134",
    "signature": "0x685d73ddf84d0b90ca6fb85b63e903664ab21d8f55c6d8b0a594a1b04004bcfe48e6ed1c3a14f9fb03115cd8257b6212551caca0c25e99a55bae72e0599f0a431b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}