{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55200",
    "entityType": "User",
    "nonce": "0x4b37f09cb07dc5c32b972100f50bcf572a76128957e9fc972c08a8264085c627",
    "signature": "0x31b0ca2e91a5990e2adfb8c16f7f6ca1f689ab2bcb163804ada81600faf4bf8c195308bd353321c6f995619cad048950132183bc5d936fcc7f7070283f8b2da11b",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}