{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "913210",
    "entityType": "User",
    "nonce": "0xd13b697569d9d6b1e255b3e272849db9a5978ba2897e6bdce5a6735bb4b48772",
    "signature": "0x888ffbdf306210e12ce74b3e4faab3826bf91383b0028c56f9f906a81266228b62910a3c2d1d2fc8484eea33b51b1cc70d96305f0bd28b89505f0fb8c50af46c1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}