{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139404",
    "entityType": "User",
    "nonce": "0xa1f892150b2e5db16efbb7640e2925b89106f73476b8c89a0f58f0c4c7bff5d2",
    "signature": "0xaa242535d30221c79c93ec1cbd001fdd908335862b2eb8b457cdd5c9495584dc28d2a27eabbc893df04724bd5d4a46f238f04b3371fea9039e27f324602792a41c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}