{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105672612",
    "entityType": "User",
    "nonce": "0xd74760d862a18b493a35ad3a0fc7c4579fb1ade750f4b7c9c944375b31defe90",
    "signature": "0x7e0714e1f841b56d0c76b9dade6bb3bec6779da87492e658d1aac2f19b3abbac0e708734bca7b0871d69d5c27b4cbde9ceb9799fae9f6a3657bf5d3e7153eb601c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}