{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312192",
    "entityType": "User",
    "nonce": "0xa1baacc1a0c5f35a273d6348d2687fe2d2acfcf2310830bb05325102132d4fdd",
    "signature": "0x3fbb740690759ac7e28daf3d8aefc0c9ee04d7c28128268b4f933303ac2dccae47feda6a33b27b2f760403018f9e369d07bdc18060a0ec8399d159f16aedb91f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}