{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2005440",
    "entityType": "User",
    "nonce": "0x1e56e12d312715c0cb337d87f4d4843200e3911ebce1dca95f2547f289dec703",
    "signature": "0xb6cff6ce87a4bb5f707e637054c8d00efcd5fbac7030e56015bf65c06b7fb995498b7485a9b6529d91f693742f71240ee7ae20a44c4f3a64ca91c289c906425b1c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}