{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293740684",
    "entityType": "User",
    "nonce": "0x994c415fd8ef16adaee5e9b0abf4f2abc2888a94de8f7bb017ec54c3f5900243",
    "signature": "0x8a9d53161e0fedefc4c97b2aab4a001bd3195f55577027b9b758cbfbb9e7598007728aa9c5910bb2c287302106ae845c613524988651035bd77360b5078228d71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}