{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15b187a794bc263f08c8cebbbe85534bcd2ac56ff2b2956749c176b84a4842a2",
    "signature": "0x434ad7155b3c686fc88f2e89d840748f5e905a549a8e3368d968fd933ec040a9631d3a0b443df2836fae90b89385c58440dee695c05c27460fd49fb7fdc29b6b1c",
    "signer": "0xfb10f4049c6f3AD197aC1e2367766B3cC9f74651",
    "userId": "532349201"
  }
}