{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144",
    "entityType": "User",
    "nonce": "0x7f3dc644c0e1a2de4402f0068c879fab2c042bde8fb4249d3defc6a4db9a100c",
    "signature": "0x1b4e690054988a6e4ee70998ddb3059da369ccb0dc967374c534c5255499d0587ec2cb5e19f81103507f63bf1a1917170a3503bba07a7e8a632e6388f10893361b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}