{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0x17d5c67ec8de0feca2eb4ea8ffea07697aad9c2c8d2cd56974dff47ae0f7602a",
    "signature": "0x56a4c9ac986bf23d2d9595126e9b99f51a2e31b19bf3a0ef7efd9de63f399e243470763ccdaf451775072f0c1c157984c7a401f2809ab6e3b43c68ec28aa00d51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}