{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "259380",
    "entityType": "User",
    "nonce": "0x077d82bf0445bd19619bf722fc6ad38e2cdccf8094c05c43d908518f1daba4c3",
    "signature": "0x1cc074086f16d009b771cdbe854475f72806845f070bc31bc919764f2f8a8d18151df279f15b506715ba00f5d4e7aac1830e9fb3b9a3dc8e694b0837b499de351c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}