{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15b127bd6f288aa82b66a32a990cd286c8d351ea5bbeb5371085dab81cc06f1b",
    "signature": "0xc745bd1038c63ca9c8327421de8bb2809776acf5fff90630927b06ac064641426f6d4a78650fd84677a7eb6e4d96d4c5579bf487e2fd92b4236fbf12d152166c1c",
    "signer": "0x93Bc1Df9B3d04Bc6607D0C62c449392263BEFc61",
    "userId": "207651544"
  }
}