{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "249822",
    "entityType": "User",
    "nonce": "0x7f019a36f80aeeb42d736d769830b84eb3c137d6dc422e0b7e85f8867f402c18",
    "signature": "0xa88a9f3816ed81784a4ff9614092c9aba6e83877c86885d409c973d5bc87a71b61f80fbd930a39be03df58084880ea2fc9e016ef5a1a2d125fcc3c6bd7b8d9c31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}