{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x4ad0772f3f4cf50e1d49c4669f7389c2fe66601e9f55dabd5611114324436c51",
    "signature": "0x4eb0363882645d6d7161decaba22181c293c801e86f2677108ba3c6a4ee1997a0aa5224e535febb73373da319b24a2ea902c3435f5a4722a4b8fc81d108b11161c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}