{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc9b639c35158923430f871225efa354543de83afca1f5d9a307fc3237aa74065",
    "signature": "0xd145dce689cb7aac367db9dbef8e8c588820e78794296b92d1a629dd5c62ab984f486745379e799ad73076891de8d7ccc1a22e28ca27c124132e5527bded3a1b1b",
    "signer": "0xdf5D006aE5C17a1EeBd08e6A3634A1779D76B91a",
    "userId": "354951137"
  }
}