{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x5805ebbbbbc1b0663f0e2589e371192023165f847e439b448c18a90a43e45ab9",
    "signature": "0x08d052119f27f2731ba6b935795572401daf4f79a8a631af097cb045885abe0d1cae966ecca334c70e4a60a4b1f24e5c72e5977dfd1a3b71f3be11a5f95f7cd01c",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}