{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x203ab7c5c77b4c561e9c427d6d92ed18f200250c1076b1cf5e3dbd5b2d0f86d6",
    "signature": "0x09cf73850e86b633646b0bc1d4eb67e08d47dbaa65cec7fb738a9269cd65745b3314cb12e277c20773590b8210df68b019e79eb5956492719de45bb3fafeb33d1c",
    "signer": "0x691141FEE5693C68A0D1808C84e5aAdd54786044",
    "userId": "215489670"
  }
}