{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1645942",
    "entityType": "User",
    "nonce": "0x48e2ffa1edf6e55c97cd3e45316fd228c720da318d903167777aedda5312f27d",
    "signature": "0x6c38c6f7263d9bd994b811bbf1a85eef22b2781a415b9a4deee9ec873b53f4315c2b1940edf46c48553d2d2cead195a5deb972f711a09a161051ae8d62bcf1621c",
    "signer": "0xA09C93F41C5Eea798006AF9F643B06777a6f9a96",
    "userId": "704608287"
  }
}