{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489165782",
    "entityType": "User",
    "nonce": "0xdddd36296f14f422c48d0a06513edc929f56068de2198c7710a3ba1fc068b234",
    "signature": "0x79455ba302b65cc165d1fa5fbe351b99229c28912851b4ccc7d7aa48f0bf3c4a6e763db9672aca11c3cc6e577a3612c52aaabbc52c0f91d1dd5e01689b8d9e501c",
    "signer": "0x78DE158d2b9e947384f8B719989897147c9d627C",
    "userId": "458983216"
  }
}