{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x687012af3f8de0ff8ecb0b0038524c05db607c4e81fcf473b80e773ce22f7cb2",
    "signature": "0x62b8900fffd96bc42d0f87be1b4acd703d98c0d36abca777ad1e932f3ac28bac5027d059128ed965f09bcc07afd389d4a1bed4d70f70c2ac47d284e8479af1b41c",
    "signer": "0xE2633E9fE5104D71589ca8D0C4f5F56Bfc3aF0C8",
    "userId": "315880606"
  }
}