{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeb7736ef1a921d95da6d8defad8c774e576bfea1a658ee104db19b6dc1dcff3f",
    "signature": "0x8545b78b7b3343f11b7f0e08244421e9172d33a3e03ec7609ffd97202cc7de56527eb997b76cd03c46e23d5f701f5770798f2c98fe1743fd4af29f53621c7c451c",
    "signer": "0xC2A9E3b7F06e60ef97DFB73522582B613021cf7A",
    "userId": "265825696"
  }
}