{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b86b608873ffa685dc41ae8af0bfceeca43078f878d67cc2721a5a473d97909",
    "signature": "0xd6ba9b8b37f84eb61159931ce80c0da15dbb96deaa16b8a917013dd50cae313f653a94b241a68a8dd9a4374e8bb20b45660b86ffc06f567b32cb108c787303d11b",
    "signer": "0x67Fe4fFC36D5279f2821f811D2A7743c059aD10F",
    "userId": "193183869"
  }
}