{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3acd8114571881857a1343c591fff701f41f30e7bc0009b6bb4b8c7e03900c7",
    "signature": "0xdcd2cda32278846c87b65775ffd9bc073d3a41f7ce7ae819bb90c0814d8643181e42d70e14efc35fced2ac7e543f808a4eb67f6a861581938f295e346025b0e41c",
    "signer": "0xF6A602938bf3C2035f253F89b50e93110F9EF4d2",
    "userId": "615050311"
  }
}