{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294860",
    "entityType": "User",
    "nonce": "0x8d3f918833a3f978fc630a056d4c6367c9af04bf7ebe75414d16b400e7a2480a",
    "signature": "0xb1e0646cb852be2170bc381f5faa5b51a7bd787bead7e2cf6a882e5e43bc2dd301bcd5140e79aba420cfff9191d89511565514114923666f1da7100c3d7313a61b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}