{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b71214cfcd1ac8a695b1a49c9513d459311ab65347be40452e3a0d01f9754bf",
    "signature": "0x3bd54147f91ed0ec8caf117d00b8c825e762f3d36ba718cf34479f6842e2f501543045475f70eeb585f994b3d41f742780216df5c61e45d8c0ed550830741df31c",
    "signer": "0x9c38bFD1280CD04602D2E5789Af4a421a97dA4cB",
    "userId": "716540288"
  }
}