{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xcb970feeef82ffd2641669839df0e0543097c6b7c310b0673e902fe9a39f0bde",
    "signature": "0xb840f619105b2c8efe090182ef304567cd760fb43bd4c9fefb20ac65db47a5b9066c3ebecd31eb22ffe7ddda182398dff5b74e9b26f3283a0fbec3df15377b7c1b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}