{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43717",
    "entityType": "User",
    "nonce": "0x48eab2d03456db5ffe180a314a0a222202db190cadc0851b9876dee69cf55314",
    "signature": "0x82c98c4fe5ef4d127120dbf2e74b5cc55630430ec710e49309ea1b6794e33b567374a7b80f0f206717a8a43b78da336e4d632cafa9ec86b9496b0e82765773851c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}