{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332210",
    "entityType": "User",
    "nonce": "0x37f17f0f91556df657a2a155d744809d12e4bf4add5d875a8da194b5e1c718d8",
    "signature": "0x90d26c219edc8e73f595273c46bec84c4360d8d2ffff85e54b569ec1bbd7cd7057b5ed898973bd091c413c63b2ba72d8ead6a03f049ab8cb4113919310aeab3a1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}