{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "894327847",
    "entityType": "User",
    "nonce": "0x54feb1a16d3323e47cabd68635ade2de5beb00585bc7cccc3f68c5c552f80944",
    "signature": "0xf01adc951036d5297574b7f9c0fca49c7a0cf47da8e81f11f99c339fa27790c94ac5a6dcc424e129c613e5084dbd9fb2d45b2180d34d65cdbd44bd3c596f4ee71c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}