{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52533",
    "entityType": "User",
    "nonce": "0x64f297f4059eaa102ccefbf9690dfce8644df0af5945ed4e2f2a7f313b19312b",
    "signature": "0x6d218d300440ad2234b32aa391323836eb4a19e53d3f49a8d9a0d99079f8b1155b17a59b8f1ec9232f3f54b82170714d39a159bd0e2f0d70cc0f32c4017d58ee1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}