{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22831",
    "entityType": "User",
    "nonce": "0xe89ab3f20ebcb72a242cb7a8c5fb78814e19b3fa67f10dcaa08925d58a2d4ee2",
    "signature": "0xaf5c8b299eb9efe1b98378b514a028de76fd6ef1a956096120762580a99c9723300fa3ac7ef51bdea671cc856231050943a2404c2c1cff47055ba8a3dcc2b26a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}