{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0x68001304bd1342b39fc7dfe120ea2a48bb3382800493292c2c6fb4019c7bb543",
    "signature": "0x9b3545aa1fd6b55d02af1b82d23bbd7d24c2fe653ba2ca0448004eb532d245052cc801d381374d8a77c81c91866ca08b40208cd3fb7389e033df053384214ce61b",
    "signer": "0xAf8F809c14168249Bad7Cec8b71b6519d23E0930",
    "userId": "589691087"
  }
}