{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897648338",
    "entityType": "User",
    "nonce": "0xf7bc6848b1605cf83312201e8bb037339f4cc7eb634fd77df4ec9da500da1c3c",
    "signature": "0xaed04dde22d542fa2cda8ccf1bc795313db5cb2bb050aa5f9ec63ab1748b542d12347be27c8b9c5f99439ed92f683d5dbbe8cee128584f19868071cd07dd4c6e1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}