{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x7fa621dc3a54dac4e23e7f8fa2a8149b6476823840259bd9c745b6be35796ad5",
    "signature": "0x443a0546d62504bc5d2c55f2358a3a88c28cf182afa0746c718965fbe1ba73e01a8fbb448b632c90ca1b63edab6be8e08077592ae470147d62293ee6ad0e299e1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}