{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa40953772374d09bcecd3820813204d55041ff97ab5fa53280df02aa619995fd",
    "signature": "0x5a19a633219206aad2621964b6a70d5164368fd6e9d34122e7da66891726a19c1733e7ea41070ccd5401c34d2dc35f56c3b60157d7be8cb2b11a2c94367817d51c",
    "signer": "0xD16DE964b94Db4bDe46DDe6B86F2e9193b7A89dA",
    "userId": "368251394"
  }
}