{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5f5fa90c609f3298b41353544f0f8e5708e15351140524c05278fe56995e04b",
    "signature": "0xbb4d55324f9035940758d6f583b40d0f8e0dd457006891d738322fe8636f46642cd56ba1a3e9c3d10f6ee03d569ef3360f99ac266fda79929f8c977ff8c8a5091c",
    "signer": "0x5A04fdca1d89B7bbE39216f89f7af924D74e59D9",
    "userId": "571572454"
  }
}