{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4220",
    "entityType": "User",
    "nonce": "0x287da02cc551efdef2a340b3292e867944e8663e75252eddc2d00bcf8f284144",
    "signature": "0x3630326d0e13f3190663741cd3b1c458b1422dbdd4c37a8548da731ce37d24e116c2f8890dcd06bf94d7ec8e08305106fcc0bb20ac60a2147c1b536f4af9de331b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}