{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0x10855f3f327580eaaa64ef3d76bee97949348f51f3b9f356c431e246ad4e65e6",
    "signature": "0x8812972aa63c0d70219ec32dc8272831b33ce9ce9ef83d0d896bcc7378c04e06383d4443ae5dbc8dbeb0b15f678be0b849f8bb8618f9768a11c2d918a97450a21b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}