{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900066767",
    "entityType": "User",
    "nonce": "0xce4669f4d1f71c4074bdccece72854e13ad9e60be3379bf29f87f3126b4eff56",
    "signature": "0xcc0205896bf4f8e39141f904307c7190a487b9de5325fdb089a247bbf5b0a01b54a28978032d46a9140c40b47a908f6ce314d6753b8a2bdd60143bde3b3df5b91b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}