{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x407705e2937ec8059eab61dc99abecf7b102f9579d6ba0ca61a252b01c521d48",
    "signature": "0x21aa31ecfbb135b598562da39165e937356161b48dc9f4fdc2a75f772559d51d118d62783f709348b246656b334c8fa891b52e4fb8265f167efb404199b497421c",
    "signer": "0x6ce2F379f5992c19e29d1826AEA2EC1534B3C0B2",
    "userId": "679947065"
  }
}