{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0xb1e12449781579e8b08cb8c7f354114a0ef88c474abaac2fd204d0b3c8e5b6fd",
    "signature": "0x627a9e8c473f462fb69733926f36cb64e0c271950cee7aea86f74b6b40d545ef1ad6dda43c10e75f333cd3da35106fc54a76c36ff5381c9d88ecbb973e6979a01b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}