{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "717376",
    "entityType": "User",
    "nonce": "0x4779cafa2d0d3b4416c92675528643796655fa454e973384049a8ea7c6212cdc",
    "signature": "0x3049475db54ab3b481547be272166d49742eee8655e01d09d36b3619d28a0022060b9dd2e4cae2a67ef7d0fe74e5a7677070e4f06798d061a9c6657d82b7443e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}