{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264865",
    "entityType": "User",
    "nonce": "0x16922dac76a58f6c2deb08ef6a4646b8514325b41f71e3b2128aeaa00a21413f",
    "signature": "0x05f3e024e92dba9e5cba26cf64c632120638db0409788347ac0a4b0c373781313add9c64c18034a3de236a0578f1d8601e6e9d1653b56f9676935781fd3fb7031c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}