{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3160ebec361f8a23089788d58c38125f10eb87e746ecd808f1195bba4182fa07",
    "signature": "0xc7583260e8db6637af78dbc9add5472447229398a302c3d2c0a0d72b87d86e8c7ad5c89f13e1d18f20cca735624f46917861f6973b8743c6996037b91ec5e6491c",
    "signer": "0x4666b391677Ae34a5a3d2Db111c8797C75608285",
    "userId": "71499558"
  }
}