{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x82fcd6d5c81132f450a23da487722d8384fe5a0914fb965263a577625c608dce",
    "signature": "0x85b0658f6c8f6d7f81b8e084c532cb22487f1a760e6ca05d0d66e27ddb539bcf6d5eb3294826edbabd6fb2247eac2ab454d1e9539eac4217190d5d42d225777f1c",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}