{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135392",
    "entityType": "User",
    "nonce": "0x40a6bb8ba977de8fb87f76e9ae3e4a436e05d0adfdefaf9ab264f650fea5f742",
    "signature": "0x3cb659d2921ed45bb4cb7ed59d28fc1e2f8e60a76f5bfe1b04b1d787df890d9c48bbfa1f8dc3c0fba41b3feb65869c55c43e2b35760dceee5d52cb8700d278131c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}