{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37071",
    "entityType": "User",
    "nonce": "0x5460131c6efef6b7ffbbe72a0892ef9de467c893aa4b7c1918e2a521de452087",
    "signature": "0x16d4a97310b0e8814012c1c04a2b545d906183fcae8ca1ce503a0458a315474a708ab4abd24ec4ac1cdd37f901f61c00ea789b71cdbc221383639dbe150478f21c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}