{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339101106",
    "entityType": "User",
    "nonce": "0x25bb5270800c0800dccf1f8b2798ae7599d68ecd435c984504decda7e293d3c1",
    "signature": "0xb9e26ab5621e31d7dcdf2570de999adf6b3d5b5f69fa5fbae518fbb5d89f755b016e18358e608cb7ef2050848c67babfd8a0db6e311d7adbfee4b96cc418f5d41b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}