{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319060",
    "entityType": "User",
    "nonce": "0x10c0bcb017c5ca91333f88055e02724b72299e12df2bb31c2075d884fddec628",
    "signature": "0x711cf233cfecabeca6b19cf3cec04c9bd11b57e33f26875b5c61aadf51409c0778e0b5e7e47ac0bd3b6efba24ca213c448af1d75dc7a52dc0a5d5f87a736e7441c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}