{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322088318",
    "entityType": "User",
    "nonce": "0x4713864ade07c0891a53f96ff1cf2b0dbc36cae43dbccb09b7899f0787e3075e",
    "signature": "0xa37c1ca8ed813460150d5319c1e7faa198dbef11f7185d8fcf8017f378efa4f96d11fb9dc72bfef5df2b577d31dab3bfe4adc62b8a31f99131f6bb02d20bd6b51b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}