{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1190",
    "entityType": "User",
    "nonce": "0xb89ec02a1db46c3ef9861d01726414463272d61ab97a2b158609e16d35900502",
    "signature": "0x369bd11bec44db6113d32f3b9c6264675deff2c50674861853b3da3c8de1a99e2f13f32a5270176f1a95e6a0c6563437f46c7892fcac82cc23633165681c496c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}