{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0x2a443291354eb7d35716e3b7ee18ccb330cf4379c82c51fb9c38755f5b8f65f8",
    "signature": "0xec9bfe6d29b9cb5e65df93c33b5a400ab6402d9d1c514c1a9f277bc54650ca7629c94c340c6feebbfe24f25422ec14b79adde117e90a4902fb7bb0463938b8b11b",
    "signer": "0x7e1F8Ad5AC71ff7ECFaaB54D7C2Ca8C373DeD528",
    "userId": "674981811"
  }
}