{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297007",
    "entityType": "User",
    "nonce": "0x9d69ef600244f0bd8c9851381e790b78afa8912c3bfafabc455057239bdf519f",
    "signature": "0x53a53301782e598ebbe4907645a9b4ebfa47d9f198141a76a36cf2d17d8689af12e192b96dc726240ef0dc063a673527ce216d9928bb23a8b56a0662c4b8d49a1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}