{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88390",
    "entityType": "User",
    "nonce": "0x11621b6c430f5e9182dcdabb7338fb9a8b8b6faa745a9ac51e2fd08321ed4fc9",
    "signature": "0x08bcdb2ae329bafff47a0acb7ec3bec89545d4c0eee8051a5a36efdf4304f963343775c9c5762efbecddc0dc920d036e1239171c537732d7ad2542c95a79476e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}