{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xb2fd1532201df3f923b3938e23bdfab940629beba7569d8ef462460519ba8a0a",
    "signature": "0x4d9aabd4125298bc1aa38054bf3b56a2d0d57854aac3b152913c2cd4ae29da0f3e399a80d32bbc80a2de1a871969ebdd75be4c7bb790e6e49f1721d13f8b04b11c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}