{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5283",
    "entityType": "User",
    "nonce": "0x90881e0fc9b4c9f8864cc843afa32058a1553fad04a609f65141f130b6339105",
    "signature": "0xb7209a38be4a35331cd2c19b6255add28e2ca514e7a927cb23379ac6dcc6e9d270a4f43b4751aea5c7aa3be5a03f3650bc22c2e9f37dc149d42c52245d0e14971c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}