{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6534e8b9ca318179c18039a35c598ba8e9ac29dab4059740d75a89600b29b21f",
    "signature": "0xfab22cce474b1ade1e0d3b56484c1c5fb65bb22fd27021b11f720fe26657be6519a343d489b84639704be0da32f8cc0378c2ba916893b6d1072d2832c520697e1c",
    "signer": "0x972D6FD26997220fA6A92b5ad5523C9c4C2D6b56",
    "userId": "759861914"
  }
}