{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "382321286",
    "entityType": "User",
    "nonce": "0x81046ebf2b228507ecf026128d4f3d0ff7992928bde01bcf30c752363e60523e",
    "signature": "0x802e7bcef939647e8afd5f7c5fe308f91f58e59f702a2216488a99aa7179861d054f43fcf706e66dfd3540c72fc8e3038f3d3880d3027e13e8683b1f751ea8221c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}