{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391472151",
    "entityType": "User",
    "nonce": "0xf79b130cd97c6a750def251e7248a1696dede61b95bdd0e4a2c9ce5dfb68d491",
    "signature": "0x3e077c1fa353f0d7773921391987c420186980473cec6cfebb4e1c06ae73d1df10ffae81a7ceb15397b0f3461f83ad169da498c6505c599c8bf1f3ab026bd1e11c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}