{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299279",
    "entityType": "User",
    "nonce": "0x2ee1adfa87ba17e367415c8a2d4ebd6fd5f946b42f4f6351e05ad9774138fcb6",
    "signature": "0xa03667b47b8958f99d51383ac3a9f49fe9e841d1e7067eb82b52365447773f5d56a81737e1475f3e04d13a4f16dafad4a9c5342a6d50b4c9e31bc45da27c06131b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}