{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214509563",
    "entityType": "User",
    "nonce": "0xa720e7b1bc0a3272d1f96c0a3620bc678a7833130a59ff554838a7c11accc1f1",
    "signature": "0x35aa3d82afbd9a09ff700943d664812640fcb35dcc1fe7a8260a66f5d2217b485dd86e778ab844f6d1306b289075062b62ec0c67df3168d66277028bd00533061b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}