{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "300080",
    "entityType": "User",
    "nonce": "0xd9692580ff241beace0f08e81ce52bf4c275a516472bd5400a1e0f886098ac1f",
    "signature": "0x3059d30cb1788e49babaf93f8788fd116687abd2b8a10932cf01ed25569f02c26b3c83b498ae38ce7853c69f4a0974dbb09033fb060d83fc392259d674af5ced1c",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}