{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328228955",
    "entityType": "User",
    "nonce": "0x5737c2404e4366ddec459240da3fc3798a1e77ecb86ab379af66ceb76d061eda",
    "signature": "0x36350b9c66856b2f9bf3fe2202240ccda9f857515fcc0d3dff33a5b4caa6345453b5c99feb19fcd3fc9887f3db9fe5ad45937da0f5cd6423ab3ff34cb32272db1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}