{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "471045089",
    "entityType": "User",
    "nonce": "0xfdf70c4844bd5efadd76b18fcb21175ac2e11b663924f63f90925b84d4326e0c",
    "signature": "0xcbc5afc3bfdd531dddc1e6e642e7cf77819b06500383d571acded814a357f8643abe1f6f7b9d86962298f3d95d29212ad4c08bee8b64ad247e141555beffcc831c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}